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High-Protein Keto Vanilla Cupcakes

High-Protein Keto Vanilla Madeleines

Light, golden vanilla madeleines with a soft crumb — high-protein, low-carb, sugar-free, and ready in 35 minutes

These high-protein keto vanilla madeleines are soft, lightly sweet, and perfectly portioned. Made with almond flour, protein powder, and eggs, they bake up with a tender crumb and classic madeleine shape (or as simple mini muffins). Every serving of 2–3 cakes delivers 7 g of protein and only 2.5 g net carbs.

Completely sugar-free, low-carb, and ideal for a quick snack or tea-time treat.

Prep10 min
Cook15–18 min
Servings10–12 cakes
Protein7g
Net Carbs2.5g
Calories145

Why you’ll love these madeleines

  • 7g protein per serving (2–3 cakes) — a satisfying high-protein treat
  • Only 2.5g net carbs and fully sugar-free
  • Soft, fluffy texture with classic vanilla flavor
  • Ready in about 35 minutes
  • Perfect for snacking or pairing with coffee/tea
  • Easy to make in a madeleine pan or mini muffin tin

Health notes

  • High protein: Protein powder and eggs create a protein-rich bite.
  • Ultra low carb: Almond flour and sugar-free sweetener keep net carbs very low.
  • Sugar-free: No added sugar of any kind.
  • Portion-friendly: Easy to enjoy without overdoing calories or carbs.

Key element — don’t overmix

Once the dry and wet ingredients are combined, mix just until smooth. Overmixing can make the madeleines dense instead of light and fluffy.

Ingredients

Dry ingredients

  • 1 cup (100–110g) blanched almond flour
  • ¼–⅓ cup unflavored or vanilla whey protein powder (or a blend that bakes well)
  • ⅓–½ cup powdered sugar-free sweetener (erythritol, monk fruit, or allulose)
  • 1 tsp baking powder
  • Pinch of salt

Wet ingredients

  • 3 large eggs
  • 3–4 Tbsp melted butter or coconut oil
  • 1–2 tsp pure vanilla extract
  • 2–3 Tbsp unsweetened almond milk or heavy cream (as needed for batter consistency)

Optional extras

  • Zest of ½ lemon for a brighter flavor
  • Pinch of cinnamon

Swaps

  • Higher protein: Increase the protein powder slightly and reduce almond flour by the same amount.
  • Dairy-free: Use coconut oil and a dairy-free milk alternative.
  • No protein powder: Use additional almond flour (texture will be a bit denser and protein lower).
  • Flavor variation: Add lemon zest or a touch of almond extract.

Instructions

Pro tips

  • Use powdered (not granulated) sweetener for the smoothest texture.
  • Chilling a metal madeleine pan helps encourage the classic hump.
  • Don’t overmix the batter — stop as soon as it comes together.
  • These are best the day they are made but keep well in an airtight container for 2–3 days.
  • For a more traditional look, dust lightly with powdered sugar-free sweetener once cooled (optional).

Nutrition

NutrientPer serving (2–3 cakes)
Calories145
Protein7g
Net carbohydrates2.5g
Total carbohydrates4g
Fiber1.5g
Total fat11g
Sodium120mg

Estimates based on almond flour, whey protein powder, eggs, and butter. Exact numbers vary with the specific protein powder and sweetener used.

Variations

Lemon madeleines

Add the zest of 1 lemon and a few drops of lemon extract for a bright citrus version.

Chocolate chip

Fold in 2–3 Tbsp sugar-free mini chocolate chips before baking.

Almond flavor

Add ¼–½ tsp almond extract along with the vanilla.

Mini muffin version

Bake in a mini muffin tin if you don’t have a madeleine pan — same delicious result.

Storage

MethodTimeNotes
Room temperature1–2 daysStore in an airtight container
RefrigeratorUp to 5 daysBring to room temperature or warm slightly before serving
FreezerUp to 1 monthFreeze in a single layer, then store in a bag; thaw at room temperature

FAQ

Yes. At only 2.5g net carbs per serving they fit most keto plans.
Yes. A mini muffin tin works perfectly and gives a similar soft, cake-like result.
Overmixing the batter or using a protein powder that doesn’t bake well can cause density. Mix gently and use a whey or whey-casein blend that works in baked goods.
Yes. Powdered erythritol, monk fruit, or allulose blends all work. Avoid granulated sweeteners that can feel gritty.
Keep in an airtight container at room temperature for 1–2 days or in the refrigerator for up to 5 days. They also freeze well.
Start with the amount listed. Some protein powders absorb more liquid — adjust with a splash of milk if the batter becomes too thick.

Test your knowledge

5 quick questions about these keto vanilla madeleines

1. Protein per serving (2–3 cakes)?

2. Net carbs per serving?

3. Why avoid overmixing the batter?

4. About how long do these take?

5. Best pan to use if you don’t have a madeleine pan?

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