Keto Hamburger Buns

Annie Lampella @ Ketofocus

By Annie Lampella, Pharm.D.

Published August 9, 2020 • Updated March 10, 2026

Reader Rating
4.9 Stars (17 Reviews)

This post may contain affiliate links. See my disclosure policy.

I made these fluffy, gluten-free buns because I was tired of eating burgers with no bread. They hold together, taste like real buns, and come in at 3.4g net carbs.

triple decker burger topped with a keto hamburger bun

I know you’ve been missing bread and a real burger with a bun. I have been too.

There are only so many bunless burgers I can take. I created this recipe because I wanted a real bun, not a lettuce wrap, not a fathead dough disc made from a pile of mozzarella. These are gluten-free buns that actually rise in the oven, hold their shape, and taste like bread.

The reason these work when so many keto buns don’t is the combination of xanthan gum and psyllium husk together. Most recipes skip one or the other. I’ve tested both ways. Without xanthan, you lose the stretch and the bun tears when you pick it up. Without psyllium, the inside dries out and goes crumbly within hours. Using both gives you a bun that holds a loaded burger without falling apart on the first bite.

The whole process takes about 20 minutes from bowl to oven. I sift the dry ingredients (this matters for a finer crumb), stir in eggs, melted butter, and sour cream, then shape the dough with wet hands. It’s sticky on purpose. 12-13 minutes at 400 degrees and the edges crisp up golden while the inside stays soft and spongy.

Here’s what I do on burger night: I start the grill, then mix the batter. Once the burgers go on, the buns go in the oven. By the time everything is off the heat, the buns are cool enough to slice. Dinner hits the table at the same time, no waiting around.

A tip I picked up from a reader: chill the shaped buns for 10 minutes before baking. It helps them hold their dome instead of spreading flat on the tray. I didn’t include this originally, but I’ve been doing it ever since Ashley mentioned it and she was right.

These work for more than just burgers. I’ve used them for breakfast sandwiches with egg and cheese, sloppy joes (the hardest test because the sauce soaks in fast), and as slider-size buns when I divide the dough into 6-8 smaller pieces. One reader made 8 sliders for a party and said they held up better than the full-size version.

If you’re on a low carb bread kick, try my keto sandwich bread, my dinner rolls, my hot dog buns for cookout season, or my keto biscuits if you want something flaky.

 

baked keto hamburger buns on a tray

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Recipe
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Keto Hamburger Buns

4.9 (17) Prep 5m Cook 13m Total 18m 5 servings

Ingredients

Step by Step Instructions

Step by Step Instructions

1
Preheat oven

Preheat oven to 400 degrees. Place a sheet of parchment paper on a baking tray and set aside.

a 400 in red on a black background
2
Sift dry ingredients

Whisk or sift together dry ingredients in a medium bowl. Sifting the dry ingredients is preferred to get a finer texture.

dry ingredients in a bowl
Ingredients for this step
  • Almond flour
  • Whey protein powder
  • Psyllium husk flakes
  • Golden flax seed meal
  • Baking powder
  • Xanthan gum
  • Salt
3
Finish dough

Add eggs, melted butter and sour cream to dry ingredients. Mix together until combined.

hamburger bun dough mixed in a large bowl
Ingredients for this step
  • Eggs
  • Butter
  • Sour cream
4
Mold into buns

Wet your hands with some water or oil in order to handle the dough as it is sticky. Divide the bread dough into four balls and mold each ball into a round disc shape and place on a parchment lined baking tray. Continue with remaining dough. Place each dough ball about 1-2 inches apart.

buns molded on a parchment lined baking tray
5
Sprinkle sesame

Sprinkle sesame seeds on top of each bun if you want to make a sesame seed bun. Some add bagel seasoning here for a ‘kitchen sink’ burger bun topping!

sesame seeds on top of unbaked buns
Ingredients for this step
  • Sesame seeds
6
Bake

Bake at 400 degrees Fahrenheit for 12-13 minutes or until slightly hardened on the outside and spongy to the touch. Let cool for 3-5 minutes before slicing.

baked hamburger buns on a tray
Nutrition Per Serving
310 Calories
23.8g Fat
20.3g Protein
3.4g Net Carbs
8.7g Total Carbs
5 Servings
Nutrition disclaimer

The nutrition information provided is an estimate and is for informational purposes only. I am a Doctor of Pharmacy (Pharm.D.); however, this content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always consult your physician or other qualified health provider before making any lifestyle changes or beginning a new nutrition program.

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Keto Hamburger Buns

Frequently Asked Questions

Can I make these in an air fryer?

I've tested these in the air fryer and they work well. Drop the temp to 375 (not 400, the psyllium holds moisture and they'll dry out fast at full heat). Start checking at 10 minutes. Mine usually go about 12. They won't dome as much as the oven version, but the texture is right.

Can I use psyllium husk powder instead of flakes?

Powder is way more concentrated than flakes. Use about 1 tablespoon of powder in place of the 2 tablespoons of flakes. Readers who've tried it tell me the buns come out a bit more dense, and they can look slightly gummy when warm. That cooks out as they cool. I keep flakes in my pantry specifically because they're easier to measure for baking.

How do I reheat these without them crumbling?

I microwave mine for about 20 seconds wrapped in a damp paper towel. Whatever you do, don't toast them. Almond flour buns lose moisture fast without gluten to hold things together, and toasting makes the bottom crumble into pieces. I learned this after a reader reported the same thing, and I confirmed it myself. Microwave, always.

Can I freeze keto hamburger buns?

I freeze them all the time. Let them cool completely after baking, then separate with squares of parchment paper and store in a freezer bag. They keep for about 2 months. To thaw, I leave them on the counter for 30-40 minutes or microwave for 15-20 seconds.

Why didn't my buns rise?

The most common reason I see is old baking powder. If yours has been sitting in the pantry for a while, it loses its lift. Also double-check that you're using 1 1/4 teaspoons of xanthan gum (not 1/4 teaspoon, which my video overlay got wrong at one point). If the dough is spreading flat instead of holding shape, try adding a touch more almond flour, or chill the shaped buns for 10 minutes before they go in the oven.

Can I make slider-size buns with this recipe?

I divide the same dough into 6-8 pieces instead of 4 for sliders. The bake time drops to about 10-11 minutes since they're smaller, so keep an eye on them. A reader made 8 small ones for sloppy joes and said they held up even better than the full-size version because the ratio of crispy edge to soft center was higher.

What can I substitute for whey protein powder if I'm dairy-free?

I haven't tested every option, but pea protein or a plant-based blend should work. Make sure it's unflavored so the buns don't pick up any sweetness. The protein powder gives these their structure, so I wouldn't skip it entirely. If you're also cutting sour cream, try coconut cream as my suggested swap.

Can I add herbs or spices to the batter?

I do this all the time. Garlic powder and onion powder are my go-to additions (a teaspoon of each). A reader turned me onto everything bagel seasoning on top instead of plain sesame seeds, and I won't go back. Italian seasoning mixed into the dough works well with burgers too.

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Low carb flour swaps and substitutions

Some of the ingredients here aren’t typical pantry staples. Protein powder, psyllium husk, flax meal. I keep them around because I use them in most of my keto baking, but if you need to swap something out, here’s what I know works.

The combination of these ingredients produces a light, fluffy bun with a bread-like crumb. Each one does a specific job, so I’d avoid skipping any of them entirely.

Instead of almond flour, use sunflower seed flour. It’s the best nut-free option and measures cup for cup with almond flour, so you’ll still use 1 cup. The taste is slightly different but the structure holds up the same.

keto smash burger with all the fixings on a bun

How many carbs are in a regular bun?

gluten-free hamburger bun on a baking tray with sesame seeds on top

I get it, you’re at a cookout and the buns are right there. But consider this: a traditional hamburger bun has 28 grams of carbs per bun. Even a quarter of one is 7 carbs, which is more than two of mine.

These come in at 3.4g net carbs each. That’s a real bun with a real burger for a fraction of the carb cost. I’d rather spend 20 minutes making a batch than blow my macros on a store-bought bun that isn’t even that good.

Store bought alternatives

If you don’t want to bake your own, there are a couple of brands I’ve tried.

Franz buns

Franz makes a low carb bun with 1 gram net carb per bun. The catch: they’re not gluten-free. They use wheat gluten and modified wheat protein for that squishy texture. If gluten gives you inflammation or you’re sensitive to it, skip these. I tried them once and they taste fine, but I prefer making my own so I know exactly what’s in them.

Hero buns

Zero net carbs and 11 grams of protein per bun. I’ve bought these when I’m short on time and they’re solid. The texture is close to a regular bun, and the macros are hard to beat. If you need a grab-and-go option, Hero is the one I’d pick.

What to serve on burger night

Burger night at my house always has sides. Here’s what I usually throw together:

About the Author
Annie Lampella, Pharm.D.

Annie Lampella, Pharm.D.

Annie is a Doctor of Pharmacy, mom, and the recipe creator behind KetoFocus. With a B.S. in Genetics from UC Davis, she has over 14 years of experience developing family-friendly keto recipes based on the science of human metabolism.

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4.9 Stars (17 Reviews)
  1. J
    Jen Mar 13, 2026

    Hadn't had a real bun in over a year and the first bite made me do that thing where you close your eyes without meaning to.

  2. J
    Jordan Mar 12, 2026

    I've tried probably six different keto bun recipes over the past two years and every single one either fell apart the second I put anything on it or had that weird spongy protein bread taste that my brain just refused to accept as a bun. This one is different in a way I wasn't expecting. The psyllium husk and flax combo does something to the texture that none of my other recipes had, like there's actual structure there instead of just density. Toasted one this morning for a breakfast burger and it held up through the whole thing, didn't get soggy at the bottom, didn't crumble when I bit in. The 3.4g net carbs had me skeptical because usually that kind of macro means you're sacrificing something, but I genuinely can't figure out what the trade-off is here. Going back through my recipe folder and retiring the other five.

  3. S
    Sarah Mar 3, 2026

    Used brown butter instead of regular melted and the buns picked up this nutty depth that worked really well with a smash burger. Worth the extra two minutes.

  4. A
    Ashley Feb 26, 2026

    Added a teaspoon of garlic powder to the dry ingredients and won't skip it again. Also, chilling the shaped buns 10 minutes before baking helps them hold their dome.

    1. T
      Taylor Feb 27, 2026

      Same on the garlic powder, been adding it for months. I throw in a little onion powder too and it's a noticeably better bun.

  5. L
    Lorraine Feb 21, 2026

    Growing up, my mom made hamburger buns from scratch every Sunday, and I hadn't thought about that in years. When I opened the oven on these and saw how they'd domed up, it just came back all at once. She used to wet her hands too, the dough always sticking, the same vague frustration. These aren't hers (nothing is), but the texture when you split one is closer than I expected. I've made them three times since.

    1. Annie Lampella
      Annie Lampella Feb 21, 2026

      Three times since. The wet hands part is in there because the dough fights you otherwise. Sticky on purpose.

  6. K
    Kim Feb 17, 2026

    I wasn't sure these would work as real buns but they did. Held together with a burger and everything. Texture was way better than I expected.

    1. Annie Lampella
      Annie Lampella Feb 18, 2026

      The xanthan gum and psyllium together are what make them actually hold. A lot of keto bun recipes skip one or the other and they just fall apart the second you bite in.

  7. T
    Tamara Robinson Feb 16, 2026

    Planning to use my air fryer instead of the oven for these since it's faster and I'm making them for a quick weeknight burger. Should I drop the temp to 375 or keep it at 400, and do they need the full time or will they cook faster?

    1. Annie Lampella
      Annie Lampella Feb 16, 2026

      375 for sure. The psyllium husk in these makes them hold moisture and they'll dry out fast at 400 in an air fryer. Start checking at 10 minutes, mine usually go about 12.

  8. C
    Cathy Jul 31, 2023

    I have whole psyllium husk. Is that different than psyllium husk flakes?

    1. Annie Lampella
      Annie Lampella Jan 6, 2024

      I believe these are the same thing...as long as yours looks like flakes.

  9. L
    Lorenia Mathews May 25, 2023

    Do you have to use psyllium husk flakes or can you use psyllium husk powder ? I only have powder.

    1. Annie Lampella
      Annie Lampella Jul 13, 2023

      I haven't tried it with the powder. It might work but you should probably try less. Maybe 1 tablespoon?

  10. E
    Elizabeth Mar 22, 2023

    I made these today - 8 small for sliders rather than four large. They looked beautiful, but I toasted mine before eating my sloppy joe (to reheat it) and it was crumbly - the bottom broke into pieces when I picked it up. I'll try them again with the ice cubes in the oven, and also try microwaving the ones left instead of toasting. Thanks!

    1. Annie Lampella
      Annie Lampella Mar 23, 2023

      Toasting is rough on almond flour buns. They lose moisture fast without gluten to hold things together. I'd microwave for reheating, 20 seconds in a damp paper towel. Ice cubes help the bake but won't change how they handle toasting.

  11. J
    June Feb 17, 2023

    I cannot tolerate whey protein. Can I substitute with any other unflavored protein powder?

    1. Annie Lampella
      Annie Lampella Feb 19, 2023

      I haven't tried other types of protein powder in the recipe. I think it would still work but not completely sure. If you try one, let me know how it turned out.

  12. A
    Andrea Dec 11, 2022

    I tried them yesterday, the dough was very wet, so I added a bit of the dry ingredients. ?The first minutes in the oven the dough did flatten and run to the sides, but then it actually rose a bit. Due to your pictures, I didnt expect much of a rise, so when they got nice color I took them out. The taste was very good, I had added a bit of italian spice to the mix which matched perfectly with the burgers. The only issue was that the bottom bit crumbled while eating, well - not the worst, but I guess it was just slightly dry. We will use this recipe again!! Thank you very much!

    1. Annie Lampella
      Annie Lampella Dec 17, 2022

      The wet dough is just the psyllium - it sets up in the oven. Adding extra dry ingredients was probably what dried out the bottom, so next time try going with the recipe as written. Italian spice with burgers is such a good call though.

  13. S
    Suzanne Wynn Aug 23, 2022

    Oh! I also added two pinches (I'm a real scientist over here!) of yeast. Just for flavor.

    1. Annie Lampella
      Annie Lampella Aug 27, 2022

      Ha, the scientist pinch method. Yeast won't do anything structural in these (baking powder handles all of that) but the flavor argument is real - that slight bready note actually makes a lot of sense with hamburger buns.

  14. S
    Suzanne Wynn Aug 23, 2022

    Hi! Thanks for these! They're pretty good! Much like the old "Farmer's Bread" that I've missed.
    I had to make a few changes so I thought I'd share.
    I only have physillium husk power and based on a hunch, I only used one tablespoon.
    The batter seemed a bit dry to me to I added a splash of heavy cream and maybe half a teaspoon of apple cider vinegar. (I also know psyllium husk needs lots of liquid) And there was a little "leftover" butter in my measuring cup so I tossed that in too.
    Too many times I've ended up with gritty breads because there wasn't enough liquid.
    I was also concerned about it baking nice and crisp on the outside but staying gummy in the middle so I cooked them on a lower rack on 325 for 10 minutes and then up to 400 for another 5 minutes. There is a tiny bit of goo in the middle when still warm (but with more butter lol no one noticed!) but I'm pretty sure when they cool down, there will be even less.
    I think I have a new fave bread recipe! Thanks again!

    1. Annie Lampella
      Annie Lampella Aug 28, 2022

      Psyllium powder is way more concentrated than flakes, so half was the right call. The goo cooks out as they cool, that's just psyllium holding water when hot.

  15. M
    Marina Feb 22, 2022

    What can I substitute for golden fkax seed. I don't have that.

    1. Annie Lampella
      Annie Lampella Feb 23, 2022

      I haven't tried any substitutions for golden flax seed yet.

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