These are just like mini-cakes, that are the perfect serving size for afternoon teas, or the special treat to share with friends and family. The filling is a thick, marshmallow-style frosting - but if you'd like to make it a little creamier and thinner, add a little more milk.
The photo shows the whoopie pie with a little chocolate drizzled over the top for extra jazz!
Preheat oven to 180 degrees C. Line baking trays with baking paper.
Cream together butter, sugar, eggs and vanilla. Sift togetheer flour, cocoa and salt. Alternatively add flour mixture and sour milk to butter mix. Add baking soda to hot water and stir into cake mix.
Drop spoons of cake mix onto baking trays. Bake for 7-10 minutes. Allow them to cool on the trays, before transferring onto cooling racks.
Cream together all ingredients. Beat until light and fluffy.
Spread filling mix between cooled cakes.
To sour the milk, mix in one tablespoon of lemon juice or white vinegar to one cup of milk.