This 4-Ingredient Slow Cooker Vintage Mayonnaise Cake is the kind of simple, old-fashioned dessert that feels right at home on a family table. Mayonnaise cake has been around for generations because it cleverly adds richness and moisture without any fuss, and making it in the slow cooker turns it into an easy treat for busy days when you still want something homemade. With just a boxed cake mix, thick creamy mayonnaise, water, and chocolate chips, you get a soft, tender cake that tastes like you spent far more time on it than you really did.
Serve this cake slightly warm with a scoop of vanilla ice cream, a dollop of whipped topping, or a glass of cold milk for a cozy dessert everyone will love. It also pairs nicely with fresh strawberries or raspberries to brighten up the rich chocolate flavor, and if you are setting out a dessert spread, this cake fits right in beside coffee, hot cocoa, or even a simple after-supper cup of tea.
4-Ingredient Slow Cooker Vintage Mayonnaise Cake
Servings: 8
Ingredients
1 box chocolate cake mix
Directions
1. Lightly grease the insert of your slow cooker or line it with a parchment sling if your cooker allows. This will help the cake release more easily after baking.
2. In a large mixing bowl, stir together the chocolate cake mix, thick creamy mayonnaise, and water until the batter is smooth and well combined. Fold in the chocolate chips.
3. Pour the batter into the prepared slow cooker and spread it into an even layer. Cover the slow cooker with the lid, placing a clean paper towel under the lid if needed to catch excess moisture.
4. Cook on high for 1 1/2 to 2 hours, or until the top looks set and a toothpick inserted near the center comes out with a few moist crumbs. Avoid lifting the lid too often while it cooks.
5. Turn off the slow cooker and let the cake rest for 15 to 20 minutes before slicing and serving. Scoop or lift out portions and enjoy warm, or let it cool completely for cleaner slices.
Variations & Tips
For picky eaters: If your family likes simple desserts, leave out the chocolate chips for a smoother, more classic chocolate cake texture. You can also dust the top with a little powdered sugar instead of adding extra toppings.
Make it extra chocolatey: Stir in dark chocolate chips or milk chocolate chips instead of semi-sweet if that is what you have on hand. A drizzle of chocolate syrup over each serving makes it feel a little more special for birthdays or weekend treats.
Check your slow cooker early: Slow cookers can run quite differently from one kitchen to the next, so start checking near the 1 1/2-hour mark. The cake should be set on top but still soft and moist inside, not dry.
Easy serving tip: For a more pudding-cake style dessert, serve it warm straight from the slow cooker with a large spoon. If you want neater pieces, let it cool longer before lifting or slicing.
Add a little flavor twist: A teaspoon of vanilla extract or a pinch of cinnamon can be mixed into the batter if you want to dress it up a bit while still keeping that old-fashioned charm. Fresh raspberries on the side are especially nice with the rich chocolate flavor.
