Lady Baltimore Cake
Preheat oven to 350 degrees. Butter pans; line with parchment paper. Butter lining; dust with flour, tapping out excess. Set aside.Advertisement
Lightly beat the egg whites, milk, and vanilla in a medium bowl; set aside. Whisk together flour, baking powder, and salt in a medium bowl; set aside.
Mix butter and sugar on medium speed in the bowl of an electric mixer fitted with the whisk until pale and fluffy. Add flour mixture in three batches, alternating with the milk mixture and beginning and ending with the flour, mixing well after each addition and scraping down sides of bowl as needed. Do not overmix.
Pour batter into prepared pans. Bake until cakes are light golden and a tester inserted in centers comes out clean, 25 to 30 minutes. Let cakes cool completely in pans on wire racks.