In a bowl add oil,butter,sugar and egg whisk,add cup of butter milk

In a bowl add flour,baking powder,baking soda,cocoa powder and mix

Pour the dry ingredients to wet ingredients and whisk

Add food color whisk,add vinegar and whisk

Homemade butter milk..2 +1/2 tbsp powdered milk,1 cup warm water,1/2 tsp venigar and stir let it set for 5 min...done