Step 1: In a large mixing bowl, whisk together the all-purpose flour, dark cocoa powder, granulated sugar, baking powder, and a pinch of kosher salt.
Step 2: In a separate bowl, mix together the whole milk, egg, and melted unsalted butter until well combined.
Step 3: Pour the wet mixture into the dry ingredients and gently mix until just combined, then fold in the crushed Oreos.
Step 4: Preheat your skillet or griddle over medium heat, adding a small amount of melted butter.
Step 5: Using a ladle, pour about 1/4 cup of batter onto the skillet for each pancake. Cook until bubbles form, then flip and cook until done.
Step 6: While the pancakes are cooking, whip the cold heavy whipping cream until soft peaks form.
Step 7: Stack the pancakes on a plate, dollop with whipped cream, drizzle with chocolate sauce, and sprinkle with crushed Oreos. Enjoy!