Sift flour and baking powder, then add salt and sugar. Mix together.
Melt the butter and leave to cool.
Mix the buttermilk with the eggs and vanilla extract.
Make a well in the flour and pour in the previous mixture and the melted butter.
Mix with a spoon without whisking. Don't try to smooth the batter. The batter should remain thick.
Heat the frying pan or griddle over medium heat and brush on a little butter.
Pour a small ladleful of batter into the center. You can use an ice-cream scoop.
The batter will spread slightly. Smooth the top, keeping the batter round.
Turn the pancake over as soon as small bubbles appear and the dough begins to dry on the edges as shown below (1 to 2 min).
You can watch the video. Be careful, the pancake cooks very quickly, so don't wait until the top is dry before turning it over.
Brown the other side for 1-2 min, then remove with a rubber spatula and place on a plate.
Cook the rest of the batter in the same way, always brushing a small amount of butter onto the pan.
If you want to make blueberry pancakes, add a few blueberries to the batter just before baking.
Generously drizzle your pancakes with maple syrup and a knob of butter and enjoy.