Preheat oven to 350°F (175°C). Grease and line two 8-inch round cake pans with parchment paper.
In a bowl, mix almond flour, cocoa powder, baking powder, and salt.
In another bowl, whisk eggs, melted butter, almond milk, erythritol, and vanilla.
Combine wet and dry ingredients until smooth.
Pour batter evenly into pans and bake for 20–25 minutes or until a toothpick comes out clean.
Let cakes cool completely.
For filling: Beat cream cheese until fluffy. Add erythritol and vanilla, then gradually beat in heavy cream until light and creamy.
For ganache: Warm heavy cream on low heat, then stir in chocolate chips and butter until smooth. Cool slightly.
To assemble: Place one cake layer on a plate, spread filling evenly, then top with the second cake.
Pour ganache over the cake, letting it drip beautifully down the sides.
Chill for at least 1 hour before slicing and serving.