Favorite Chocolate Sheet Cake

Created by KittenCal on September 5, 2011

Ingredients

1 cup butter, cut in pieces
1 cup very strong brewed coffee (or 1 cup very hot water with 2 teaspoons instant coffee granules)
1/4 cup sifted unsweetened cocoa
2 cups sugar plus 2 tablespoons sugar
2 cups all-purpose flour
1/2 teaspoon salt

Step 1: Preheat oven to 350 degrees F (set oven rack to second-lowest position).
Step 2: Grease sides of a 15 x 10-inch jelly-roll pan or can use a 17 x 11-inch jelly roll pan, then line the bottom with parchment paper.
Step 3: In a medium saucepan combine the butter with brewed coffee and cocoa powder; heat stirring constantly over medium-low heat until the butter is melted and the mixture is thoroughly combined; mix in the sugar and vanilla until no sugar granules remain, then transfer to a large mixing bowl; cool for about 20 minutes.
Step 4: Whisk in eggs until combined then mix in the sour cream until blended.
Step 5: In a small bowl combine the flour with baking soda and salt then add to the chocolate mixture; beat or whisk until thoroughly blended (batter will be thin).
Step 6: Pour into the prepared jelly-roll pan then sprinkle the chocolate chips evenly over the top.
Step 7: Bake for 18-20 minutes (watch closely this cake will not take long to bake).