Banana split cupcakes

Ingredients

• 125 grams butter, softened
• 3/4 cup firmly packed light brown sugar
• 2 eggs
• 1 1/2 cup self-raising flour
• 1/2 teaspoon baking soda
• 1 teaspoon mixed spice
• 1 cup mashed overripe banana
• 1/2 cup sour cream
• 1/4 cup milk
• 250 grams butter, softened
• 3 cups icing sugar
• 1/3 cup milk
• 80 white mallow bakes (or marshmallows of choice)
• 16 banana lollies
• 185 grams dark (semi-sweet) eating chocolate, melted
• 2 tablespoons chocolate sprinkles