Prepare the Mix: In a large bowl, whisk together the flour, sugar, baking powder, baking soda, and salt until well combined.

Make the Batter: In another bowl, combine the milk, egg, melted butter (or oil), and vanilla extract (if using). Add the wet ingredients to the dry ingredients and stir until just combined. Do not overmix; the batter should be slightly lumpy.

Cook the Hotcakes: Preheat a non-stick skillet or griddle over medium heat and lightly grease it with butter or oil. Pour 1/4 cup of batter onto the skillet for each hotcake.

Flip and Cook: Cook until bubbles form on the surface, and the edges look set, about 2-3 minutes. Flip and cook for another 1-2 minutes until golden brown.

Serve: Serve hot with your favorite toppings such as syrup, fresh fruit, or butter.