Red yeast whoopie pie.

Recipe: ( from Whoopie pies shop- Kevin Chai)
Ingredients:
- 50g butter, soften in room temperature
- 70g fine sugar
- 40g beaten egg
- 1/2 tsp vanilla essence ( I use 1 tsp vanilla extract)
- 120g plain flour
- 5g red yeast powder
- 2g biocarbonate of soda
- 1g baking powder
- 90g yogurt
* Filling:
- 200ml whipping cream
- 2 tbsp icing sugar
Method:
  Preheat oven to 180 degree C. Line baking tray with baking paper. Beat the butter and sugar in a mixer until light and fluffy. Beat in egg and vanill essence, mix well. Sift the flour, biocarbonate of soda and baking powder, fold in to butter mixture. /then fold in red yeast powder. Stir in yogurt, mix until batter is formed. Spoon batter into a piping bag fitted with plain tip and pipe onto prepared tray, about 3cm circles, spacing evenly. Bake in oven for 10' or until cakes are springy to the touch. Remove from oven and allow to cool completely on wire rack.
* Filling: Stir icing sugar into whipping cream, keep in the fridge for 1 hour. Use electric mixer to whip the whippng cream in a cold mixing bowl until cream thicken. Do not over beat.
* To assemble: Place the whoopie pies flat side up. Pipe the filling onto one, then sandwich with another whoopie, flat side down.
 Note: The original recipe uses buttercream for filling but I replace with whipping cream as I prefer a lighter taste.