Fluffy Keto Vanilla Cupcakes: Gluten-Free and Paleo

Expect truly fluffy, moist keto vanilla cupcakes topped with our famous buttercream frosting. Simple but incredibly satisfying, these cupcakes have about 2g net carbs each when unfrosted.

Keto Vanilla Cupcakes

The Fluffiest Of The Fluffy!

These cupcakes are exceptionally light — so much so that with this batch I could have made eight smaller cupcakes instead of six large ones. They bake up soft and tender and are perfect as a low-carb treat or party dessert.

Think of them as little fat-bomb treats: rich, satisfying, and best made with high-quality ingredients. I recommend using unsalted grass-fed butter when possible for flavor and added nutritional benefits.

The Details

Simple vanilla recipes can be harder to adapt to low-carb baking because there are no strong flavors to hide texture issues. To boost flavor and add depth, I recommend lightly toasting the almond flour before using it. Toasting brings out a pleasant nuttiness and improves the overall aroma, but it’s optional if you prefer a pure vanilla profile.

Sweetener Options

There are several low-carb sweeteners that work well here. Allulose gives an excellent texture with no cooling aftertaste — note that you may need to use about 30% more allulose by volume compared to granulated sugar. Xylitol can also be used (choose non-corn sources if you are sensitive), and erythritol or erythritol blends will work if you don’t mind a slight cooling effect. If you want to limit sugar alcohols, consider a stevia blend that combines erythritol and stevia; these blends are much sweeter, so use less.

For the buttercream frosting, powdered sweetener is essential for a smooth texture. If your sweetener is granular, process it in a dry blender until powdered — allow the dust to settle before opening the lid. If you have pets, be careful with xylitol: it is highly toxic to dogs and cats, so avoid using it if animals may have access to these treats.

The Flours

These cupcakes use a blend of superfine almond flour, golden flaxseed meal, psyllium husk powder, and a touch of xanthan gum (or extra flax meal as an alternative). For the best texture, regrind the golden flaxseed meal in a dry blender so it’s very fine. Use finely ground psyllium powder or regrind husks to avoid grittiness. Important: golden flaxseed meal behaves differently from regular brown flaxseed — it produces a lighter crumb and avoids a gummy result.

(The Fluffiest!) Keto Vanilla Cupcakes

Truly fluffy and moist keto vanilla cupcakes topped with a vanilla buttercream. Simple, delicious, and low in net carbs when left unfrosted.

If you prefer to bake with cups instead of grams, convert using your preferred method.

Prep Time
20 mins

Cook Time
25 mins

Total Time
45 mins

Course
Breakfast, Dessert

Cuisine
American

Servings
8 cupcakes

Calories
131 kcal

Ingredients

For the vanilla cupcakes

• 64 g almond flour
• 15 g golden flaxseed meal
• 9 g psyllium husk powder
• 1 1/4 teaspoon baking powder
• 1/4 teaspoon xanthan gum (or 2 tsp golden flaxseed meal)
• 1/8 teaspoon kosher salt
• 1/2 cup allulose (or 1/3 cup xylitol or erythritol)
• 2 eggs
• 2 teaspoons vanilla extract
• 1 teaspoon apple cider vinegar
• 42 g unsalted grass-fed butter, melted and cooled
• 60 g sour cream (or coconut cream + 2 tsp apple cider vinegar, room temperature)

For the vanilla frosting

• 1 batch keto buttercream frosting (see recipe for method)

Instructions

For the vanilla cupcakes

1. Optional: Lightly toast the almond flour in a dry skillet over medium heat, stirring frequently until it turns golden and fragrant, about 2–4 minutes. Transfer to a bowl to cool completely. Toasting adds nuttiness but can be skipped for a cleaner vanilla flavor.
2. Preheat the oven to 350°F (180°C). Line a muffin pan or grease and flour it; set aside.
3. In a medium bowl, whisk together the almond flour, golden flaxseed meal, psyllium husk powder, baking powder, xanthan gum (if using), and salt until well combined.
4. In a large bowl, beat the sweetener and eggs with an electric mixer for 3–5 minutes until the mixture becomes airy and lighter in color. With the mixer running, add the vanilla extract, apple cider vinegar, and melted cooled butter.
5. Add the dry flour mixture in two additions, alternating with the sour cream. Mix until fully incorporated and the batter becomes elastic. The batter will thicken as you mix.
6. Scoop the batter into the prepared muffin tins. Smooth the tops with wet fingertips to prevent uneven domes.
7. Bake for 23–27 minutes, until golden and a toothpick inserted in the center comes out clean. Begin checking around minute 15; tent with foil if they brown too quickly. Muffins may deflate slightly after baking, which is normal.
8. While the cupcakes cool, prepare a batch of vanilla buttercream frosting. When cupcakes are completely cool, frost and serve.
9. Store frosted cupcakes in the refrigerator for up to 3 days. Unfrosted, store at room temperature in an airtight container — the texture stays best for a couple of days.

Notes

Please note that nutrition facts were estimated per cupcake without frosting. Frosting adds roughly 100–200 calories and less than one gram net carb per cupcake depending on how much you use.

Nutrition

Serving: 1 cupcake
|
Calories: 131 kcal
|
Carbohydrates: 4 g
|
Protein: 4 g
|
Fat: 12 g
|
Fiber: 2 g
|
Sugar: 1 g

Keyword
keto vanilla cupcakes, paleo vanilla cupcakes

Whip up this recipe?
If you try these cupcakes, leave a comment below or share a photo on Instagram with the handle paola.vanderhulst and tag #gnomgnomyum.