Delicious Brazilian Bem Casado Cake

Cook an unopened can of sweetened condensed milk in a pressure cooker covered with water for 40 minutes and let cool completely

Beat the sugar, egg yolks, and margarine in a mixer until light and fluffy

Add the all-purpose flour and baking powder and beat until combined

Beat the egg whites until stiff peaks form

Gently fold the stiff egg whites into the batter

Pour the batter into a greased small round cake pan with removable bottom

Bake in a preheated medium oven for 20 to 25 minutes or until a toothpick inserted comes out clean

Let the cake cool completely in the pan on a wire rack

Cut the cake horizontally into two layers

Spread the dulce de leche on the bottom layer and place the top layer over it

Dust the top with powdered sugar