Chocolate Marble Gooey Butter Cake

Chocolate Marble Gooey Butter Cake CRUST: 1 box yellow cake mix 1 stick salted butter melted 1 large egg FILLING: 1 8 oz block cream cheese softened to room temp. 2 large eggs 1 stick salted butter melted 1 tsp vanilla extract 3 3/4 cups powdered sugar 1 cup semi-sweet chocolate chips Preheat oven to 350F degrees. Spray a 9x13 baking pan with nonstick cooking spray. For the crust: In a medium bowl, combine cake mix, melted butter and egg. Beat together using an electric or stand mixer on low for 2 minutes. You'll notice the batter will start to pull away from the sides of the bowl. Spread the batter into the bottom of your baking dish. It's best just to get in there with your hands to get it all evenly spread out. For the filling: Using the same mixing bowl, add the cream cheese and beat on low until smooth. Add the eggs, melted butter and vanilla extract and mix on medium speed for 1 minute. Add in the powdered sugar and mix everything together until smooth and well incorporated. Place 1 cup chocolate chips into a microwave safe bowl or dish. Microwave chips on high for about 1 minute (maybe longer depending on your microwave). Stir chips to make sure they all melted. Measure out 1 cup of the cream cheese filling.Combine cream cheese filling with melted chocolate. Whisk together until well blended and all one color. Pour filling on top of crust and spread out evenly. Using a spoon, dollop chocolate filling on top of cream cheese filling. Using a butter knife, swirl the knife around so the top of the batter has a marbled effect. Bake for about 45 minutes. Be careful not to overbake. Cool for at least 30 minutes. Then cut into squares and serve.