I made 5 different types of cupcakes tonight with one recipe of my favorite White Cake.
Dissolve 1/4 cup instant coffee into 2 tbsp of boiling water, or more if needed.
Melt 2 squares of semi-sweet chocolate or 1/3 cup of semi-sweet chocolate chips.
Mix coffee and chocolate together and let to cool.
Add to previously made cake batter and follow instructions for baking.
I added 1 to 2 tbsp of instant coffee dissolved in 2 tsp of hot water to my Butter Cream Frosting and add icing sugar to make frosting thicker after adding liquid.