Ingredients Cookie Base: 200 g unsalted butter softened 250 g light brown sugar 1 large egg 1 tsp vanilla extract 275 g plain flour 1 tsp baking powder 150 g chocolate chips Oreo Layer: 16 Oreos whole Brownie Layer: 170 g unsalted butter melted 250 g caster sugar 2 large eggs 125 g dark chocolate […]

