Preheat oven to 350. Line 2 9x13 pans with non stick foil or 2 small cookie sheets. Then in a large mixing bowl combine all dry ingredients and set aside.
In a separate bowl combine buttermilk, oil, eggs and vanilla. When mixed add hot coffee.
Pour the liquid mixture into the dry mixture. Using rubber spatula combine until moist. Then using a hand mixer, mix until complete blended. Pour into pans and bake until an inserted tooth pick comes back clean.
Let the cakes cool. While cooling. Mix together on high the Heavy cream and powdered sugar until you can form stiff peaks.( you can add flavors to the cream also, like cocoa, mint or banana extract.)
When cake is cool, remove from pans lifting out by the foil. Lay on a flat surface. Then using what ever design you choose. Cut out three cake pieces. (i used a circle, but hearts, clovers, egg or stars would be fun.)
Place the first layer of cake on the plate. Cover with whipped cream and repeat two more times leaving the cream as the last layer. Sprinkle the mini chips over the cake. (you can also sprinkle in the layers if you prefer.
I garnished this one with a strawberry. But Chocolate shavings on top, raspberries or even a fruit syrup drizzled would be nice. Enjoy....