Preheat the oven to 350°F. Grease a 9-inch round cake pan or springform pan and line the bottom with parchment paper.
Blend the cottage cheese until smooth. Whisk it with the eggs, melted butter, vanilla and almond extract until creamy.
In another bowl, whisk the almond flour, coconut flour, granulated sweetener, baking powder and salt. Stir into the wet ingredients until smooth and thick.
Spread the batter into the pan. Press the raspberries gently into the top, then sprinkle the sliced almonds evenly over everything.
Bake for 35 to 40 minutes, until the almonds are toasted and a toothpick in the center comes out clean.
Cool in the pan for 15 minutes, then release and cool completely. Dust with powdered sweetener just before serving.