Keto Hard Seltzer Strawberry Slushy
Published June 28, 2020 • Updated March 14, 2026
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I blend this keto strawberry slushy with hard seltzer and frozen strawberries for a sugar-free frozen cocktail that tastes like actual summer. At 82 calories a glass, I make two without thinking twice.
I started making this hard seltzer strawberry slushy after TikTok was flooded with White Claw slushie videos. Those versions were loaded with sugar, so I made my own low carb frozen cocktail that tastes better than the sugary originals. One blender, five ingredients, and you have a poolside drink that looks like you spent way more effort than you did.
The key to getting a real slushy texture (not a watery mess) is the ratio of ice to liquid. I use 3 cups of ice to 2 cans of hard seltzer and 2 cups of sugar-free ginger ale. If you want an even thicker consistency, freeze your White Claw in ice cube trays first. One of my readers suggested this and I tried it. He was right. Way less dilution, and the texture holds up even if you are sitting outside in the heat.
I have made this with White Claw, Truly, and a few store-brand seltzers. They all work. Berry-flavored White Claw is my go-to, but I have also done Black Cherry and Mango. Each flavor changes the slushy just enough to keep it interesting. I usually match the seltzer flavor to whatever frozen fruit I have on hand. Frozen mango with Mango White Claw is a combination I keep coming back to.
If you want something stronger, add a shot of vodka or rum on top after blending. I do this when it is just adults and nobody is driving anywhere. It layers nicely because the slushy is already cold and thick. For more cocktail ideas, try my keto margarita, keto strawberry daiquiri, keto mojito, or sugar-free vodka lemonade.
One thing I learned from reader feedback: the monkfruit sweetener is not actually optional. I listed it that way originally, but without it the ginger ale flavor steamrolls the strawberry. Even a tablespoon of powdered monkfruit fixes the balance completely.
This is the kind of recipe that makes eating low carb feel easy. Summer pool drinks were the thing I thought I was giving up, and this strawberry slushy proved me wrong.
How to make a white claw slushie
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Ingredients
3 cups ice -
1 cup frozen strawberries
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2 cans berry flavored hard seltzer, ie White Claw or Truly
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2 cups sugar-free ginger ale
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2-3 tablespoons powdered monkfruit, optional
Step by Step Instructions
Step by Step Instructions
The ice
Add 3 cups of ice to a blender.
Add strawberries
Add frozen strawberries to the blender.
Ginger ale time
Pour in sugar-free ginger ale.
Pour the seltzer
Pour in two cans of hard seltzer.
Blend it
Blend until smooth. Serve immediately.
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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Get My Macros + Recipes →Frequently Asked Questions
Should I freeze the White Claw in ice cube trays before blending?
I tried this after one of my readers suggested it, and it works. Freezing the hard seltzer into cubes before blending gives you a much thicker slushy with less dilution. I do this when I know we will be drinking them outside in the heat, because the texture holds up way longer than using regular ice.
Is the monkfruit sweetener really optional?
I originally said it was optional, but after testing it both ways I changed my mind. Without the monkfruit, the ginger ale flavor takes over completely and you lose the strawberry sweetness. I add at least a tablespoon every time now. If you do not have monkfruit, erythritol or allulose work too.
Can I make a big batch of this for a party?
I have scaled this to 4x for pool parties and it works perfectly. Just multiply everything, blend in two batches (most blenders cannot handle that much ice at once), and pour into a pitcher. I keep extra in the freezer and re-blend for a few seconds when someone wants a refill.
What other fruit and White Claw flavor combos work?
I have tested a few and my favorites are frozen mango with Mango White Claw, frozen cherries with Black Cherry White Claw, and mixed berries with the berry flavor. I match the seltzer flavor to the frozen fruit so the flavors line up instead of competing.
How do I keep the slushy from getting watery if I'm drinking it outside?
I freeze the hard seltzer into ice cube trays beforehand, which cuts the melt problem almost entirely. If you skip that step, the slushy holds up for about 15-20 minutes in the shade before it starts thinning out. I also use a thicker glass (not a thin plastic cup) because it insulates better.
Can I add vodka or rum to make it stronger?
I do this when it is just adults. Add a shot of vodka or white rum on top after blending. The slushy is already thick and cold, so the spirit layers in nicely without watering it down. I would not add more than one shot per glass or it throws off the flavor balance.
Can I make this without alcohol?
I make the mocktail version for my kids all the time. Replace the hard seltzer with more sugar-free ginger ale or flavored sparkling water. I add a little extra monkfruit sweetener to the alcohol-free version because the seltzer provides some sweetness that you lose when you swap it out.
How many calories and carbs are in this slushy?
My version comes out to about 82 calories and 3g net carbs per serving. I have made two in one sitting without worrying about my macros, which is the whole point of making a keto version of this drink.
Was skeptical about blending two cans of hard seltzer into anything (figured it would just go flat and watery), but this comes out genuinely thick and slushy. Tried a few other frozen keto cocktails over the years and they all taste like sugar-free compromise. This one doesn't. The White Claw holds up better than I expected and the frozen strawberries keep it cold without diluting. Already planning to double the batch for the deck this weekend.
Before keto I used to make frozen strawberry daiquiris every summer (the kind with the sugary mix from the bottle), and I haven't touched anything like that in almost two years. Made this on a warm evening last week and the first sip genuinely caught me off guard. The frozen strawberries blending with the hard seltzer gets this texture so close to what I remembered. I've missed this more than I realized.
I've been working through basically every frozen keto drink recipe I can find this spring, and most of them are either too sweet or just taste like watered-down fruit. This one's different. The sugar-free ginger ale is doing something I haven't seen in the others. There's a faint bite underneath the strawberry that makes it read like an actual cocktail, not just a slushy with seltzer poured in. Made it twice already and skipped the monkfruit the second time because the frozen strawberries carry plenty of sweetness on their own. 82 calories a glass and I've stopped counting how many I've made this week. This is the one I'm keeping.
Tried this with a lime White Claw instead of berry and threw in a handful of fresh mint, and the flavor went from 'strawberry slushy' to something that tastes like a proper cocktail you'd pay $14 for at a rooftop bar. I had no idea a swap like that would do that much. One thing I figured out: freeze your serving glasses for a few minutes first so it stays slushy longer instead of turning into watery pink juice halfway through. Making this every warm weekend now.
Never made a frozen cocktail from scratch before, so I wasn't totally sure I was doing it right. Grabbed two cans of White Claw, threw the frozen strawberries and everything else in, blended it up, and the result was way more legit than I was expecting. The frozen strawberries give it this actual slushy consistency, not just crushed ice floating around in pink water. 82 calories a glass and I made two without a second thought. I skipped the monkfruit because it looked optional and figured the White Claw sweetness would carry it (which it did fine), but now I'm wondering if adding it changes the flavor much or mostly just bumps the sweetness? Making this again for a spring cookout this weekend regardless.
Used Truly strawberry lemonade instead of berry and squeezed in half a lime before blending. Tartness cuts through where the plain berry version doesn't. Color holds longer too, if it's sitting for a bit.
So I've made this three times in the last two weeks, and what finally clicked was stopping the blend-everything-at-once approach. Ice and frozen strawberries go in with just the ginger ale first (about 20 seconds), then pour in the White Claw at the end and pulse it twice, maybe three times. Stays icy and a little fizzy instead of turning into a watery pink smoothie, which kept happening. That last bit of carbonation makes it drink more like a frozen cocktail than blended juice. Also tried strawberry White Claw instead of berry and the strawberry flavor came through way stronger, which I liked better. Been making it on warm April evenings. It's kind of become my thing.
Pulsing the White Claw in at the end makes sense. You're basically just blasting all the carbonation out when you run it with the ice for a full 20 seconds. Strawberry White Claw over berry I haven't actually tested side by side... but I'm doing it this weekend.
Made this last weekend on a warm spring evening and it came together fast. Blending the White Claw with the frozen strawberries gives you this bright, icy texture that actually tastes like a real cocktail, not a diet compromise. The one thing I'd flag: it loses its slush consistency within a few minutes of pouring, so have your glasses ready before you hit blend. Next time I'm starting with the full 3 tablespoons of monkfruit instead of waiting to taste and add.
The frozen White Claw trick solves the melt thing entirely. Freeze it in ice cube trays before blending and you get an extra 15-20 minutes before it starts thinning. And yeah, 3 tablespoons straight in.
Brought these to my sister's cookout last weekend and made them fresh with her blender. Her neighbor asked which store sold pre-made slushies like that, thinking I'd grabbed something from a cocktail bar. I let her believe it for about five minutes before explaining it was White Claw and frozen strawberries. 82 calories and she could not wrap her head around it.
Ha. I would've let her believe it the whole cookout. 82 calories and it looks like a $14 bar drink - that's exactly what it's supposed to be.
I've been keto for almost a year but somehow never made a frozen cocktail until this weekend. The carbonated-liquid-in-a-blender thing had me skeptical (I was sure it would go flat and watery), but the slush texture was spot on. 82 calories a glass, so I made a second before I even finished the first. This is going to be a whole spring situation.
The carbonation does go flat but the frozen strawberries are what hold the texture together. And yeah, two is basically one serving at 82 calories. Spring is going to be expensive.
Made these last Saturday evening while we were sitting on the porch and my wife kept refilling hers without asking what was in it. That's really the whole story. She's been watching her calories for months and I finally told her this morning it was 82 calories a glass. She didn't believe me until I pulled up the recipe on my phone.
The phone receipt move. Nobody believes it at first. 82 calories and 3 net carbs sounds made up.
Made these Saturday night and my wife who normally avoids anything sugar-free kept going back for more without once asking what was in them. Told her it was White Claw and frozen strawberries. She laughed and said 'no way,' so yeah, these are happening all summer.
You weren't even lying though. That really is the recipe. Good summer ahead.
I've tried a few keto blended drinks that were basically crushed ice with an artificial aftertaste. Expectations were low. The sugar-free ginger ale seemed like a weird call until I actually tasted it (it's what gives the whole thing body, the way it blends into the seltzer instead of just sitting on top). Four stars mostly because I'm still landing on my monkfruit amount, but this is the first one I've made where I actually felt like I was drinking a real cocktail, not a substitute.
You nailed the ginger ale thing. It's not adding sweetness, it's adding body. For monkfruit I start at 2 tablespoons and taste after the first blend. Frozen strawberry sweetness varies batch to batch so I never just measure and go.
My 16-year-old spotted me making this, assumed it was a regular slushy, and drank half the batch before I said a word. The White Claw plus frozen strawberries really does taste like something from an actual bar menu, not a keto workaround.
Teenagers do not spare your feelings when something tastes off. Half the batch is a real verdict.
Used a lime White Claw instead of berry (only thing I had), and with the frozen strawberries it tastes more like a frozen strawberry margarita than a slushy. Did not expect that. Good surprise.nnTip if your blender isn't high-powered: blend the ice and ginger ale first, then add the seltzer and strawberries. I got chunks the first two tries before I figured that out. Switched the order and it came out completely smooth.nnFour stars mostly because I'm still figuring out monkfruit amounts for my taste, but that's on me.
Lime White Claw with frozen strawberries is basically a strawberry margarita slushy. Not complaining. The order tip is legit - ice first gives the blender something to work with. For monkfruit, start at one tablespoon and taste before you add more.