Coffee Cupcakes with Coffee Buttercream Recipe

Cupcakes (makes about 20 small ones)
150g unsalted butter
150g caster sugar
3 eggs
1 tsp vanilla extract
175g self-raising flour
30ml strong coffee (approx. 2 tbsp of instant coffee powder)

1. Beat butter and sugar together until light and fluffy
2. Add eggs one by one while continuing to beat (don't worry too much if the mixture looks a little weird after adding the eggs)
3. Add vanilla and then sift in the flour while adding coffee a little at a time
4. Mix all together until combined
5. Bake at 180 C for 15-20 minutes

Buttercream

125g butter
250g icing sugar
20ml strong coffee 

1. Beat butter and icing sugar together
2. Depending on how soft you want the buttercream, add coffee a little at a time until it becomes the right consistency