Chocolate Peanut Butter Cookies

INGREDIENTS

30 g

(1 and 1/2 tablespoons) unsalted butter, room temperature

125 g

smooth peanut butter, room temperature

90 g

icing or powdered sugar

115 g

or 1 stick) unsalted butter, room temperature

90 g

brown sugar

50 g

caster sugar

1 tsp

vanilla extract

large egg

175 g

(1 and 1/4 cup) plain flour

40 g

cocoa powder

1/2 tsp

baking soda

100 g

(2/3) dark chocolate, roughly chopped