Madeleines

Name: Madeleines
Prep time: 1 h 15 min
Cook time: 12 min
Total time: 1 h 27 min
Cuisine: French
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 (100g) granulated sugar; 2 teaspoons lemon zest; 1 teaspoon pure vanilla extract; 1 cup (115g) sifted all-purpose flour* (spoon & leveled); 1/2 teaspoon baking powder; 1/8 teaspoon salt; optional: confectioners’ sugar for sprinkling on top; madeleine pan; pastry brush