Step 1

Preheat the oven to 350 degrees Fahrenheit and grease a 9x13-inch baking pan with butter or cooking spray.

Step 2

In a medium bowl, whisk the flour and baking powder until combined. Set aside.

Step 3

In a stand mixer, whisk the eggs for 3-5 minutes on medium-high speed until pale, thick, and fluffy.

Step 4

While the eggs whip, place the butter and milk into a small saucepan over medium-low heat. Warm until the butter melts and bubbles appear around the edge. Do not boil.

Step 5

When the eggs are thick, gradually add the sugar and the vanilla while they continue to whisk.

Step 6

Slowly add the dry ingredients to the egg and sugar mixture, whipping on medium until well blended and smooth.

Step 7

Turn the mixer to medium-low, then carefully stream the hot milk and butter into the batter. Mix until just combined.

Step 8

Pour the cake batter into the baking pan and bake for 30-35 minutes or until a toothpick inserted into the center comes out clean.

Step 9

Let the cake cool in the pan for 10-15 minutes. Then, turn it onto a wire rack to cool fully.

Step 10

Serve and enjoy!