This slow cooker 3-ingredient limoncello spritz dump cake is the kind of effortless summer dessert that feels a little playful and a little nostalgic at the same time. Dump cakes became popular for good reason: they deliver the comfort of cobbler-like fruit desserts with almost no prep, and this version leans into bright citrus flavor for a sunny, pool-party-ready twist. Using a slow cooker keeps the oven off and makes it especially handy for warm-weather gatherings, potlucks, or any time you want dessert without fuss.
Serve this warm straight from the slow cooker with scoops of vanilla ice cream, whipped cream, or a spoonful of mascarpone for a richer finish. Fresh berries, especially raspberries or blueberries, make a nice tart contrast to the sweet lemon filling, and if you're serving adults, a chilled glass of prosecco or sparkling lemonade pairs naturally with the limoncello spritz flavor profile.
Slow Cooker 3-Ingredient Limoncello Spritz Dump Cake
Servings: 8
Ingredients
1 box lemon cake mix, about 15.25 ounces
1 can lemon pie filling, about 21 ounces
1 cup lemon-lime soda or sparkling limoncello-style spritz soda
Directions
1. Lightly grease the inside of a 4- to 6-quart slow cooker. Spread the lemon pie filling evenly across the bottom.
2. Sprinkle the dry lemon cake mix evenly over the pie filling, covering the surface as uniformly as possible. Do not stir.
3. Slowly pour the lemon-lime soda all over the cake mix, moistening as much of the surface as you can. Again, do not stir; the layers will bake into a soft filling with a tender cakey top.
4. Cover and cook on high for 2 to 2 1/2 hours or on low for 4 hours, until the edges are bubbling and the top looks set with golden patches.
5. Turn off the slow cooker and let the cake rest for 10 to 15 minutes before serving so the filling thickens slightly. Spoon warm portions into bowls and serve as is or with vanilla ice cream.
Variations & Tips
Add butter for a richer crust: If you want a more classic dump cake finish, drizzle 1/2 cup melted butter over the cake mix before cooking. It is no longer a strict 3-ingredient dessert, but it gives the top a deeper golden color and a richer flavor.
Use white or vanilla cake mix: Lemon cake mix boosts the citrus flavor, but white or vanilla cake mix also works well if that is what you have on hand. The dessert will taste a bit milder and sweeter, with the lemon pie filling carrying most of the fruit flavor.
Keep the lid slightly ajar at the end if needed: Slow cookers trap moisture, so if the top seems a little too soft near the end of cooking, prop the lid open slightly for the last 20 to 30 minutes with a wooden spoon handle to let excess steam escape.
Try berry garnish or mix-ins: A handful of blueberries or raspberries scattered over the lemon pie filling before adding the cake mix gives the dessert a nice color contrast and a more tart, summery character.
Best way to serve leftovers: Refrigerate leftovers once cooled, then reheat individual portions in the microwave. The texture will be softer on day two, but it remains delicious, especially with whipped cream or spooned over pound cake.