Dark Chocolate Sheet Cake - cooking recipe

Ingredients

1 (18 1/4 ounce) package devil's food cake mix with pudding
1 cup sour cream
1 cup water
1/2 cup vegetable oil
3 large eggs
1 teaspoon vanilla extract

Preparation

Place a rack in the center of the oven and preheat the oven to 350 degrees.
Grease and flour a 9x13\" cake pan.
In a large mixing bowl, place the cake mix, sour cream, water, oil, eggs, and vanilla. Mix with an electric mixer on low for 1 minute.
Stop the mixer and scrape down the sides of the bowl. Increasing the mixer speed to medium, mix for 2 more minutes, until the batter is well blended.
Pour the batter into the prepared pan, smoothing the top with a spatula.
Bake the cake for 38 minutes. It's done when it springs back when lightly pressed with your finger. It might need up to 4 more minutes, depending on your oven.
Remove the pan from the oven and cool, in the pan, on a wire rack.
Frost with desired frosting.