142 g box of small ball-shaped chocolates (such as malted milk balls)
3/4 cup all-purpose flour (we spoon flour into the dry measuring cup & level off)
1/4 tsp baking soda
pinch fine salt
1/2 cup granulated sugar
4 tbsp unsalted butter (at room temperature)
1/2 tsp pure vanilla extract
1 large egg
1/2 cup smooth peanut butter
56 g semisweet chocolate
1 small tube white cake decorating gel