I thought it was about time that I made Whoopie Pies! These seemed to take ages to do, but were very very worth it!
200g of unsalted butter
1 large egg
150g caster sugar
125g soured cream
1 teaspoon vanilla extract
¾ teaspoon bicarbonate of soda
275g plain flour
200g icing sugar
Sugar balls, or sprinkles, to decorate
100g white marshmallows
- Line a large baking tray with nonstick baking paper and preheat the oven to 180°C, fan 160°C, gas 4.
- Melt 75g of the butter and set aside. Whisk the egg until light and fluffy. Slowly add the sugar and then beat until thick and glossy.
- Beat in the melted butter, soured cream, 25ml of milk and the vanilla. Sift the bicarbonate of soda and flour into the bowl and beat until smooth. Using a wide piping nozzle and pipe the mixture on to the tray in small walnut-sized balls, 3-4cm apart. You’ll need to bake in batches.
- Bake for 12ish minutes until almost evenly golden on top. Leave to cool for a few minutes, then transfer to a cooling rack and bake the remaining mixture.
- For the cream, heat the marshmallows and milk in a saucepan over a low heat. Keep stirring until the marshmallows have disolved. Cool. Beat 125g of butter until creamy and soft then gradually beat into the marshmallow until smooth.
- Sandwich two whoopie cakes together with the marshmallow cream.
- For the icing, mix the icing sugar with 2-3 tablespoons of cold water. Drop a little on each whoopie. You can then add your sprinkles or whatever you like.
These cakes can be made up to 2 days ahead or can be frozen (unfilled). Once filled and iced the buns will keep for up to 6 hours.
And the result! Well worth the time and effort. I have frozen the extra pieces and will use them at a later date. The mistake I made was not waiting long enough for the milk/marshmallow mixture to cool. When I added the butter, it sort of melted into it, forming a more custardy/runny mixture, instead of a buttercream. So that’s one to learn for next time!! I think I will try some of the variations on this too… I will update when I have tried them!
Good luck! x