Sugar Free Marshmallows

These soft, fluffy marshmallows are keto-friendly, sugar-free, and high in protein! They pair perfectly with your favorite hot beverage (hint: a homemade rich chocolate) and they are fluffy and hold their shape so well! You can use other flavors of protein shakes, like chocolate or caramel, but my personal favorite is always vanilla!

Jump to:

• Ingredients You'll Need
• Let’s Make Marshmallows
• Better Than Store-bought!
• How To Store Them
• Why You’ll Make These Again (Probably Tomorrow)
• 📖 Recipe
• 💬 Reviews

Let’s talk marshmallows. Soft, pillowy, melt-in-your-mouth goodness… usually loaded with sugar and off-limits when you’re living that low-carb life. But not these.

These 3-ingredient sugar-free marshmallows are keto-approved, totally homemade, and shockingly easy to make. And they’re not just sugar-free, but they’re high in protein, thanks to one clever ingredient you probably already have in your pantry: vanilla protein shake.

Yep, no corn syrup, no weird additives, and no baking required. Just a few minutes of prep, a bit of patience while they set, and then boom, you've got fluffy, bouncy marshmallow magic.

Ingredients You'll Need

• 2 tablespoons gelatin powder
• ½ cup cold water
• 1 cup hot vanilla protein shake (any low-carb, sugar-free brand you love)

That’s it. Seriously. If you’re already eyeing your shaker bottle and wondering if this will actually work, yes, it will. And yes, you’re going to make these again and again.

Let’s Make Marshmallows

1. Step One: Sprinkle the gelatin over ½ cup cold water in a large mixing bowl. Let it bloom for 5 minutes. It’ll thicken up and look a little weird. That’s exactly what we want.
2. Step Two: Gently heat your vanilla protein shake in a saucepan over low heat. No need to boil. Just get it hot enough to dissolve the gelatin. Think “steamy coffee,” not “lava.”

3. Step Three: Slowly pour the hot protein shake into the bloomed gelatin while whisking. This part’s key. Go slow and steady so everything blends smoothly.
4. Step Four: Now crank things up. Use a hand mixer or stand mixer on high speed for 5–7 minutes. You’re aiming for a pale, fluffy mixture that’s tripled in volume. It should look like soft whipped cream with an airier bounce.

5. Step Five: Pour the mixture into a greased or baking paper-lined dish. Smooth the top with a spatula. (Don’t worry if it’s a little sticky. That’s part of the charm.)
6. Step Six: Let it sit at room temperature for 3–4 hours. It needs this time to firm up and take shape, so resist the urge to poke it every 10 minutes (we’ve all been there).

7. Step Seven: Once set, slice into squares, take a moment to admire how fluffy they are… then snack away!

Better Than Store-bought!

These marshmallows are ridiculously soft and fluffy. Like clouds that somehow hold their shape. The vanilla gives them that classic marshmallow vibe, without the sugar rush or weird aftertaste you sometimes get from store-bought sugar-free options.

And the best part? They melt just enough when you toss them into a hot drink. Imagine a couple floating in a homemade keto hot chocolate, yum.

How To Store Them

Once you’ve cut your marshmallows, store them in an airtight container. You’ve got options:

• Keep them at room temperature for up to 2 days if you like them extra soft and squishy.
• Pop them in the fridge for up to a week if you want a firmer, chewier bite (great for snacking straight out of the container).

Pro tip: If they start to stick together, dust them lightly with a little bit of powdered erythritol or coconut flour. Just a pinch!

Why You’ll Make These Again (Probably Tomorrow)

Sure, these marshmallows are low-carb and sugar-free, but honestly? You’ll keep making them because they’re fun. There’s something wildly satisfying about whipping up something this fluffy and delicious from just three humble ingredients.

Plus, if you’re the type who likes to impress guests with keto treats that don’t taste keto, these hit the mark. People won’t believe you made them yourself, let alone that they’re protein-packed and made without sugar.

Whether you’re pairing them with your favourite cozy beverage, sneaking one as a midday treat, or layering them into your next keto dessert, these marshmallows deliver on all fronts: taste, texture, and totally guilt-free indulgence.

📖 Recipe