These have a moist, rich, and fudge chocolate cupcake filled with Oreo wafer cookies then stuffed with an Oreo cream filling and then topped with an Oreo buttercream.
In the bowl of a stand mix beat your butter until softened. Add your sugar and whisk until soft and combined. Then add your buttermilk, oil, eggs, vanilla until combined.
In a small bowl whisk your flour, coco powder, baking powder, baking soda, salt. Add to your wet ingredients and whisk until combined.
Add your boiling water and whisk.