Add the flour to a mixing bowl and create a small well in the center. Add the baking powder, baking soda, sugar, and salt. Stir everything together until evenly distributed.
Pour in the lemon juice, vanilla extract, melted butter, and lightly beaten egg. Mix gently while gradually adding the milk. Continue whisking until the batter becomes smooth and lump-free.
Allow the batter to sit for about 10 minutes. This resting time helps the flour absorb the liquid and improves the final texture. The batter should be thick but still easy to pipe.
Place a non-stick frying pan over medium heat. Lightly grease the surface with butter or oil. Avoid using too much grease because it can affect the shape of the mini pancakes.
Transfer the batter to a squeeze bottle or piping bag. Squeeze tiny dots of batter onto the heated pan, leaving a little space between each one. Keep them small for the classic cereal appearance.
Cook until tiny bubbles appear on the surface and the tops begin to look dry. Use a spatula to flip the pancakes and cook for another 30 to 40 seconds until golden brown.
Transfer the cooked mini pancakes to a serving bowl. Add your favorite toppings and enjoy them warm. They can also be served with milk for the classic cereal experience