INGREDIENTS
1/2 cup
(1 stick; 115g) unsalted butter (plus another 2 Tbsp for the pan)
2
large eggs, at room temperature
1/2 cup
granulated sugar
2 tsp
lemon zest
1 tsp
pure vanilla extract
1 cup
sifted all-purpose flour*
1/2 tsp
baking powder
1/8 tsp
salt
optional: confectioners' sugar for sprinkling on top
madeleine pan
pastry brush