Chocolate Whoopie Pies

Preheat the oven to 180ºC
Whisk together the caster sugar, egg, vegetable oil and milk
Stir in the flour, baking powder and cocoa
Line a couple of baking sheets with parchment paper
Drop 24 individual tablespoons onto the baking sheets
Bake in the oven for 12 minutes

Remove from the oven and allow to cool completely
Make the buttercream by beating together the icing sugar, cocoa powder and dairy free spread
Use the frosting to sandwich together the whoopie pies