Chocolate Whoopie Cakes

These are lovely cakes to bake with children as they are so easy – literally throw everything in and mix – and they are great fun. They can be made with a normal whisk but it’s much easier if you have an electric one as the batter is quite firm.

Makes about 9

75g unsalted butter, softened or melted

125g caster sugar

150g gluten-free plain flour...