STEP 1/4
Cut off the vanilla bean a little at each end, cut it in half, and scratch the seeds with the tip of the knife.
STEP 3/4
Add the three-sieve flour and baking powder, mix lightly, add a little dough to a bowl of melted butter, mix thoroughly, and then add it to a bowl of dough and mix it four times.
STEP 4/4
Sprinkle out of proportion with flour on a buttered madeleine mold, beat the pan to shake off the excess flour, fill 80% of the mold, and bake in an oven preheated to 165 degrees for 10 to 12 minutes.