2 tsp instant coffee granules
55g/2oz plain flour
1 tsp baking powder
170g/6oz caster sugar
55g/2oz cocoa powder
icing sugar, for dusting
55g/2oz pecans (optional)
1 tsp vanilla extract
40g/1陆 oz plain chocolate (minimum 65% cocoa solids)
115g/4oz unsalted butter, softened, plus extra for greasing
2 free-range eggs