In a bowl, sift the dry ingredients
Add the eggs, oil and vanilla extract to the dry ingredients and mix well with a hand mixer. The batter should look like a brownie batter.
In a separate bowl, mix the buttermilk with instant coffee and gradually add it to the brownie batter. The batter should have a runny consistency.
Pour the batter into a greased cake pan (I used an 8×8 round cake pan) and bake in a preheated oven at 350 F for 35 minutes.