When it is too hot to turn on the oven, this 4-ingredient slow cooker vintage gooey butter cake is the kind of old-fashioned treat that saves the day. Inspired by the rich, buttery St. Louis classic, this version keeps things simple and hands-off, giving you a soft, dense, sweet cake with a shiny golden top and wonderfully gooey center without heating up the whole kitchen.
This cake is lovely served in small squares with hot coffee, iced tea, or a cold glass of milk. For a simple dessert plate, add fresh berries or sliced peaches to balance the richness, and if you are making it for a potluck or family supper, a little whipped cream on the side makes it feel extra special.
4-Ingredient Slow Cooker Vintage Gooey Butter Cake
Servings: 10
Ingredients
1 box yellow cake mix, divided
1/2 cup unsalted butter, melted
8 ounces cream cheese, softened
2 large eggs
Directions
1. Lightly grease the insert of a 4- to 6-quart slow cooker. In a medium bowl, stir together half of the yellow cake mix and the melted butter until a thick dough forms, then press it evenly into the bottom of the slow cooker insert.
2. In another bowl, beat the softened cream cheese until smooth. Add the eggs and the remaining cake mix, and stir until fully combined into a thick, creamy batter.
3. Spoon the cream cheese mixture over the pressed crust and spread it gently to the edges. Cover the slow cooker with the lid and cook on low for 2 1/2 to 3 hours, or until the edges are set and the center is still slightly soft and gooey.
4. Turn off the slow cooker and let the cake rest uncovered for 20 to 30 minutes before slicing. This helps the texture settle while keeping that signature gooey middle. Serve warm or at room temperature.
Variations & Tips
For extra sweetness: If you like a more traditional bakery-style finish, dust the cooled top lightly with powdered sugar right before serving.
For picky eaters: Cut the cake into small bars instead of large squares. The rich texture goes a long way, and smaller portions are often more kid-friendly.
To prevent sogginess: If your slow cooker runs hot and creates a lot of condensation, place a clean kitchen towel under the lid for the last 30 minutes of cooking to catch excess moisture. Be sure the towel stays clear of the heating element.
Flavor change: Swap the yellow cake mix for butter cake mix if you can find it, or add a small splash of vanilla extract to the cream cheese mixture for a cozy, homemade flavor.
Make-ahead tip: This cake keeps well covered in the refrigerator for up to 4 days. Let it sit at room temperature for a bit before serving, or warm individual pieces for a few seconds to bring back that soft gooey texture.