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Ooey Gooey Butter Cake Bars: A Rich, Soft, and Irresistibly Creamy Treat

Few desserts manage to be both wonderfully simple and completely indulgent quite like Ooey Gooey Butter Cake Bars. With a buttery, chewy base and a soft, creamy topping that practically melts in your mouth, these bars are the kind of dessert that disappears quickly from a dessert table.

Gooey butter cake is strongly associated with St. Louis and is traditionally made with two contrasting layers: a firm cake-like base and a rich, soft topping. Modern versions often use cream cheese, eggs, powdered sugar, and vanilla for that signature gooey center. (Food Network)

This version keeps the preparation straightforward while paying special attention to the details that make the bars successful: the texture of the crust, the consistency of the filling, and the crucial balance between baking long enough to set the edges while leaving the center wonderfully soft.

What Makes These Butter Cake Bars So Special?

The appeal comes from the contrast between the two layers.

The bottom layer is buttery, dense, and slightly chewy. Rather than being light and fluffy like a traditional cake, it provides a sturdy foundation for the rich topping.

The top layer is where the “gooey” magic happens. Cream cheese gives it a subtle tang that balances the sweetness of powdered sugar, while eggs help it set into a soft, cheesecake-like consistency.

The finished bars should be golden around the edges while remaining soft toward the middle. Similar versions are intentionally removed from the oven while the center still has some jiggle, because that softness contributes to their characteristic texture. (King Arthur Baking)

Ingredients You’ll Need

For the buttery base

1 box yellow cake mix
½ cup unsalted butter, melted
1 large egg

For the gooey topping

8 ounces full-fat cream cheese, softened
2 large eggs
1 teaspoon pure vanilla extract
3½ to 4 cups powdered sugar

For finishing

Powdered sugar, for dusting

Using block-style cream cheese rather than a softer spread helps produce a thicker, creamier filling. Full-fat cream cheese is commonly recommended for gooey butter bar recipes. (Grace and Good Eats)

How to Make Ooey Gooey Butter Cake Bars

Step 1: Prepare the Baking Pan

Begin by preheating your oven to 350°F (175°C).

Line a 9-by-13-inch baking pan with parchment paper, leaving some overhang on the sides. Lightly grease the parchment and exposed edges of the pan.

The parchment isn’t absolutely essential, but it makes removing and cutting the finished bars much easier.

Tip: If your parchment keeps curling up, lightly grease the pan first. The grease will help hold the paper in place.

Step 2: Make the Buttery Base

Place the yellow cake mix in a large mixing bowl.

Add the melted butter and one egg.

Mix everything together until the ingredients form a thick, soft dough. Don’t worry if it looks much thicker than ordinary cake batter—that is exactly what you want for the bottom layer.

The mixture should resemble a soft cookie dough rather than a pourable batter.

Step 3: Press the Crust Into the Pan

Transfer the dough to the prepared baking pan.

Using your fingertips, the back of a spoon, or a lightly greased spatula, press the mixture into an even layer.

Try to spread it all the way into the corners.

The thickness doesn’t need to be perfect, but keeping it reasonably even will help the bars bake uniformly.

Helpful trick: Lightly grease your fingertips before pressing the dough. The sticky mixture will be much easier to handle.

Step 4: Prepare the Cream Cheese Layer

In a clean mixing bowl, beat the softened cream cheese until smooth and creamy.

This step is important because cold cream cheese can leave small lumps throughout the filling.

Add the two eggs and vanilla extract.

Beat again until the mixture is smooth.

Gradually add the powdered sugar, mixing on low speed at first to prevent a cloud of sugar from escaping the bowl. Once incorporated, increase the speed briefly and beat until the filling is creamy and uniform.

The finished mixture should be thick but spreadable.