Combine the flour, sugar, baking powder and salt in a bowl. In a larger bowl, combine the milk, butter and egg and whisk until fully combined. Add the dry ingredients and whisk together, but make sure not to overmix. Some lumps are fine! Divide into 6 bowls and dye the batter pink, orange, yellow, green, blue and purple.

Heat a frying pan over medium heat and spray with cooking spray. Dollop 2-3 tbsp of batter onto the frying pan and smooth the surface with the spoon. Cook until the surface of the pancakes develop some bubbles, about 1-2 minutes. Flip and cook for an additional 1-2 minutes, or until the surface has browned. Continue with the rest of the batter.

Stack the pancakes in the order of the rainbow. Top with whipped cream and rainbow sprinkles and enjoy!