Yellow Sheet Cake with Chocolate Fudge Frosting

and 1/4 cups (285g) all-purpose flour (spoon & leveled)

baking soda

salt

unsalted butter, softened to room temperature

and 3/4 cups (350g) granulated sugar

large Eggland's Best eggs, at room temperature

pure vanilla extract

sour cream, at room temperature1

whole milk, at room temperature2

x17 half sheet pan (I love these pans!)