In a large bowl, whisk together the flour, baking powder, and salt until evenly combined.
Whisk the wet ingredients - In another bowl, beat the egg and mix in milk, melted butter, and vanilla extract.
Combine both mixtures - Gradually add the wet ingredients to the dry ingredients and whisk until just combined. Do not overwork the batter.
Heat a large skillet or griddle - Use medium-high heat and grease with butter or oil to prevent sticking.
Spoon the batter onto the heated pan - Use about a tablespoon of batter for each pancake.
Wait for bubbles to form - When bubbles start to appear on the surface and the edges look set, flip and cook the other side until golden brown.
Serve warm - Enjoy with maple syrup, fresh fruit, or chocolate chips.
Notes
If you want extra fluffy pancakes, let the batter rest for 5-10 minutes before cooking. This allows the baking powder to activate, resulting in a lighter texture.