Preheat the oven: Preheat oven to 350 degrees F (175 degrees C) and grease an 8x8 inch baking dish, or line it with parchment paper.
Prepare the base layer: Combine almond flour, coconut flour, baking powder, salt, melted butter, eggs, sweetener, and vanilla in a bowl. Stir together until thick dough comes together.
Spread the base in the pan: Distribute the base batter evenly into the lined dish and smooth the surface with a spatula.
Make the cream cheese layer: In a separate bowl, beat the softened cream cheese with butter, eggs, sweetener, and vanilla until well combined and creamy.
Layer it: Drizzle, or use a spoon to carefully spread, the cream cheese over the bottom layer.
Bake: Bake for 30-35 minutes or until the edges are deep golden and the center is just set.
Cool before slicing: Cool the cake for at least 10 minutes before slicing and and serving.
