Pie maker Caramilk custard-filled doughnuts recipe

Name: Pie maker Caramilk custard-filled doughnuts recipe
Prep time: 20 min
Cook time: 30 min
Total time: 50 min
Cuisine: American
Ingredients: 1 cup self-raising flour; 2 tbsp cocoa powder, sifted; 2 tbsp caster sugar; 3/4 cup milk; 2 eggs, lightly beaten; 90g butter, melted, cooled; Extra 60g butter, melted; Extra 1/3 cup caster sugar; 1 tbsp custard powder; 1/2 cup milk; 75g Cadbury Caramilk chocolate, chopped (see notes)