Keto Vanilla Almond Cake with Mascarpone Frosting

One of the greatest achievements of modern baking is proving that "free-from" doesn't mean flavor-free. In this cake, almond flour not only replaces gluten but adds a moist, marzipan-like character, enhanced by coconut oil. The richness of the mascarpone cream makes you forget you're eating a low-carb dessert.
🕒 Prep Time 30 mins
🍳 Cook Time 30 mins
Total Time 2 hrs
🍽️ Servings 8 servings
🔥 Calories 420 kcal
🌍 Cuisine International

Ingredients

Equipment Needed

  • 9-inch Cake Pan - Adjusted for this batter volume.
  • Whisk and Bowls - For mixing wet and dry ingredients.
  • Serrated Knife - For splitting the cake layers.
  • Spatula - For spreading frosting.

Allergen Information

⚠️ Milk
⚠️ Egg
⚠️ Tree Nuts

Instructions

1

Preheat oven to 350°F (180°C). Line the bottom of the pan with parchment. Mix almond flour, baking powder, and salt in a bowl.

Tip: Almond flour tends to clump; break them up with a fork.
2

Beat the eggs with the erythritol until pale, then drizzle in the liquid coconut oil, milk, and vanilla.

Tip: Ensure the coconut oil isn't hot, or it will cook the eggs.
3

Fold the dry ingredients into the wet mixture. Don't be surprised; the batter will be thicker than wheat sponge cake.

Tip: There is no gluten in almond flour, so you don't need to worry about overmixing, but still work gently.
4

Bake for 25-30 minutes (test with toothpick). Let cool completely in the pan.

Tip: Almond cakes are very fragile when warm. They firm up as the fats cool down.
5

For the frosting, whip the cold heavy cream. In another bowl, mix mascarpone with erythritol and vanilla, then fold in the whipped cream.

Tip: Mix mascarpone only briefly, as it can separate and become runny.
6

Slice the cooled cake in half horizontally. Spread half the cream on the bottom layer, top with the second layer, and frost with the remaining cream.

Tip: If the cake is too fragile to cut, simply mound all the cream on top—it looks rustic and beautiful.
7

Garnish with berries and chill for at least 1 hour before serving.

Tip: During chilling, the almond flour absorbs moisture from the cream, becoming softer.

Recipe FAQ

Why does the cream taste "cool"?
This is a natural property of erythritol (endothermic cooling effect). If it bothers you, use a monk fruit blend or stevia mix.
Can I use ground almonds instead of almond flour?
Yes, but almond flour is finer and defatted, making a lighter cake. Ground almonds will yield a denser, wetter cake.
Can I replace coconut oil?
Yes, with an equal amount of melted butter.

Ingredients

  • 2 cups Almond Flour
  • 1/2 cup Erythritol (powdered is best)
  • 4 large Eggs
  • 1/2 cup Coconut Oil (liquid)
  • 1/2 cup Milk (or Almond Milk)
  • 2 tsp Baking Powder
  • 1 tsp Vanilla Extract
  • 1 cup Heavy Cream
  • 8 oz Mascarpone Cheese
  • 1/4 cup Erythritol (for the cream)
  • 1 pinch Salt