["Chocolate Oreo Cupcakes

Ingredients

• 125 g All purpose flour
• 1 large Egg
• 1 tsp Instant espresso powder (or instant coffe granules)
• 120 ml Boiling water
• 30 g Cocoa powder (unsweetened)
• 1/2 tsp Salt
• 120 ml Buttermilk
• 80 ml Vegetable oil
• 100 g Granulated sugar
• 1 tsp Vanilla extract
• 100 g light or dark Brown sugar (packed)
• 1/2 tsp Baking soda
• 3/4 tsp Baking powder
• 9 Oreos (finely crushed)
• Double cream
• 360 g Icing sugar
• 230 g Unsalted butter (softened to room temperature)
• 16 mini Oreos (optional)