Choco Butternut Munchkins, if you love Dunkin Donuts munchkins..then this recipe will make you crave for this childhood classic mini donuts we grew up with. Preheat oven to 375F. Combine the flour, sugar, cocoa powder, and baking soda in a mixing bowl. Set aside. In a separate bowl, mix together the vanilla, egg, heavy cream, milk, and oil.