01 -
Preheat oven to 350°F and lightly spray a 9x13 inch baking dish with nonstick baking spray.
02 -
In a small saucepan, combine whole milk and unsalted butter over medium heat; stir occasionally until butter melts and milk begins to simmer. Remove from heat and stir in vanilla extract.
03 -
Whisk together all-purpose flour, baking powder, and salt in a medium bowl until evenly mixed.
04 -
Using a stand mixer with a paddle attachment or handheld mixer, beat eggs and granulated sugar on medium-high speed for 4½ to 5 minutes, until the mixture is pale yellow and fluffy.
05 -
Reduce mixer speed to low and gradually add the dry flour mixture in ½ cup increments, mixing gently after each addition.
06 -
With mixer on low, slowly drizzle the warm milk and butter mixture into the batter, blending until smooth. Batter will be slightly thin.
07 -
Pour batter into prepared baking dish and bake for 30 minutes, or until top is golden and a toothpick inserted comes out with a few moist crumbs. Begin checking at 27 minutes.
08 -
Let cake cool completely in the pan, then dust with powdered sugar. Slice into 12 equal portions before serving.