Fragrant, nutty brown butter makes this brown butter Texas sheet cake a knockout. A tangy sour cream frosting and toasted nuts are the perfect finishing touch!
Melt the butter in a saucepan over medium heat. When the butter begins to foam, start stirring occasionally, until brown specks form and the butter smells nutty.
Whisk the flour, sugar, brown sugar, salt, baking powder, and baking soda in a large bowl. Stir in the brown butter, water, buttermilk, vanilla, and eggs.
Spread the batter into a greased and floured jellyroll pan. Bake at 350ºF for 15 to 18 minutes, or until a pick inserted into the center comes out clean.