Chocolate Dulce de Leche Cake

INGREDIENTS

1 1/2 cups

all purpose flour

1 1/2 cups

granulated sugar

3/4 cup

Dutch-processed cocoa powder (sifted)

1 1/2 tsp

baking soda

1 tsp

baking powder

1 tsp

salt

1/4 cup

vegetable oil

3/4 cup

buttermilk (room temperature)

3/4 cup

hot water

large eggs

2 tsp

vanilla

large egg whites

1 cup

dark brown sugar (lightly packed)

1 1/2 cups

unsalted butter (cubed, room temperature)

1/4 cup

Dulce de Leche (storebought or homemade)

2 oz

dark chocolate (finely chopped)

2 oz

heavy whipping cream