12 regular Oreo cookies for the filling & 4 regular Oreo cookies for the topping, coarsely chopped
Instructions
Preheat the oven to 425℉ / 218℃. Line the pan with paper liners. Set aside.
In a large mixing bowl, stir together the flour, baking powder, baking soda, and salt. Set aside.
In another bowl, whisk together the eggs, sugar, oil, melted butter, yogurt, milk and vanilla.
Pour the wet ingredients into the dry ingredients and whisk everything together until just combined.
Gently fold in the 12 crushed Oreo cookies into the batter.
Fill the liners all the way to the top.
Sprinkle the remaining 4 crushed Oreo cookies on top.
Bake at 425℉ / 218℃ for 5 minutes. Then lower the temperature to 350℉ / 180℃ and continue to bake for another 12-15 minutes, or until a toothpick inserted in the middle comes out clean. Do not open the oven door while the muffins are baking or they might sink.
When the muffins are done, take them out of the oven and let them cool in the pan for about 10 minutes before transferring to a wire rack to cool completely.