Instructions
Preheat oven to 175°C (350°F). Line and grease a 9-inch round baking pan.
Cream Cheese Filling: In a bowl, beat together cream cheese, erythritol, egg, vanilla, and lemon juice until smooth. Set aside.
Cake Batter: In a large bowl, whisk almond flour, erythritol, baking powder, and salt. In another bowl, combine eggs, almond milk, melted butter, lemon zest, lemon juice, and vanilla. Mix wet into dry until combined.
Assemble: Spread half the cake batter into the pan. Layer the cream cheese mixture on top, then the remaining batter.
Crumble Topping: Combine almond flour, erythritol, lemon zest, and diced cold butter until crumbly. Sprinkle over the cake.
Bake for 35–40 minutes, or until golden and a toothpick comes out clean. Cool completely before slicing.