Ingredients
Peanut butter icing
Method
1.Preheat oven to 200°C or 180°C fan. Line a 12-hole, 1/3-cup muffin pan with paper patty cases.
2.Place flour, brown sugar, baking powder, milk, peanut butter, egg, oil and chocolate in a food processor and pulse for 10-20 seconds, until combined. Scrape sides and base of bowl with a spatula and pulse again until smooth. Spoon into prepared cases and bake for 20 minutes, until a skewer inserted comes out clean. Remove from pan and cool on a wire rack.
3.Meanwhile, make icing. Using an electric mixer, beat peanut butter and butter until smooth. Beat in icing sugar and milk. Spread icing liberally over cupcakes and serve.