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Delicious Lemon Dump Cake Recipe

A quick‑and‑easy, ultra‑moist lemon dessert “dump cake” bursting with bright citrus flavor—perfect for effortless entertaining or a weeknight sweet treat.
Prep Time 10 minutes
Cook Time 50 minutes
Course Dessert
Cuisine American
Servings 12
Calories 350 kcal

Ingredients
  

  • 1 21 – 24 oz can lemon pie filling
  • 1 box 15.25 oz yellow cake mix
  • 1 stick 8 Tbsp unsalted butter, cold, sliced into thin pats
  • Zest of 1 medium lemon organic recommended
  • Juice of 1 lemon about 2 Tbsp
  • Optional garnishes: powdered sugar whipped cream, fresh mint, berries

Instructions
 

  • Preheat & Prep: Preheat oven to 350 °F (175 °C). Grease a 9 × 13‑inch baking dish.
  • Layer the Filling: Pour lemon pie filling into the pan; spread evenly to cover the bottom.
  • Add Fresh Citrus: Sprinkle lemon zest over the filling, then drizzle the lemon juice in an even layer.
  • Top with Cake Mix: Lightly “dump” the dry cake mix over the citrus layer, ensuring full coverage.
  • Dot with Butter: Arrange cold butter slices evenly atop the cake mix—leave small gaps so butter can melt through.
  • Bake: Place on center rack and bake 45–50 minutes, until the top is golden brown and a toothpick inserted into the center comes out with moist crumbs.
  • Rest & Garnish: Let cool 15–20 minutes. Dust with powdered sugar or top with whipped cream, mint, and berries before serving.

Notes

  • Butter Distribution: For extra pockets of crispiness, vary butter slice sizes.
  • Firm Filling: If pie filling is very runny, chill for 30 minutes before assembling.
  • Make‑Ahead: Assemble, cover, and refrigerate up to 24 hours before baking; add 5–10 minutes to bake time.
  • Storage: Store covered at room temperature for up to 2 days or refrigerate up to 5 days. Reheat at 300 °F for 8–10 minutes.
  • Freezing: Cut cooled cake into squares, wrap individually, freeze up to 3 months; thaw overnight and reheat.