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Key Lime Dump Cake

Key Lime Dump Cake Recipe

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Prep Time 5 minutes
Cook Time 45 minutes
Total Time 50 minutes
Servings: 8 servings
Calories: 450
Ingredients Method Notes

Ingredients
  

  • 1 (14 oz) can sweetened condensed milk
  • ½ cup fresh key lime juice
  • 2 teaspoons lime zest
  • 1 (15.25 oz) box white cake mix
  • ½ cup (1 stick) melted unsalted butter

Method
 

  1. Preheat oven to 350°F (175°C). Whisk condensed milk, lime juice, and zest directly in a 9x13-inch dish until smooth.
  2. Sprinkle dry cake mix evenly over the filling, then slowly pour melted butter over the top without stirring.
  3. Bake 40-45 minutes until golden and bubbly. Cool 15 minutes, then scoop into bowls and serve with whipped cream and extra zest.

Notes

The dry cake mix will look patchy and powdery before baking — that’s normal. During the 15-minute cool, the custard firms up enough to hold its shape when you scoop. If you want neat squares, chill the whole dish for an hour instead.