Prep the oat flour: If starting with rolled oats, blitz them in a blender until fine and flour-like.
Mix dry ingredients: In a bowl, whisk oat flour, protein powder, cocoa, baking powder, and salt until evenly combined.
Whisk wet ingredients: In a separate bowl, beat the egg, milk, vanilla, and maple syrup (if using).
The mixture should be smooth.
Combine: Pour wet into dry and stir gently. Aim for a thick but pourable batter. If it’s too thick, add a splash more milk.
Fold in chocolate chips.
Heat the pan: Warm a nonstick skillet over medium heat. Lightly grease with butter, oil, or spray.
Cook pancakes: Spoon about 1/4 cup batter per pancake. Sprinkle a little puffed rice or crushed honeycomb on top of each before flipping for that crunchy crust.
Cook 2–3 minutes until bubbles appear and edges set, then flip and cook 1–2 minutes more.
Finish and serve: Stack pancakes, add extra crunch on top, and finish with Greek yogurt, a drizzle of chocolate, or maple syrup.