Preheat the oven to 350F.
Hot chocolate cake: Warm the milk in a pan and pour over the semi-sweet chocolate. Set aside.
In a bowl, combine the flour, baking powder, salt, ancho chili, cocoa powder, and habanero powder.
Whisk the eggs, vanilla, sugar, and vegetable oil under low speed for 3 minutes.
Add the flour mixture and mix well.
Add the chocolate mixture. Set aside.
Vanilla cake: Combine all the ingredients and mix well.
Using piping bags, alternate between hot chocolate cake and vanilla cake to fill in your bundt cake pan.
Bake for 35 minutes. Let it cool and enjoy.