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3-Ingredient Slow Cooker Lemon Cake Recipe

4.4 from 138 reviews

This vibrant and zesty 3-Ingredient Slow Cooker Lemon Cake offers a simple, fuss-free way to enjoy a moist and fluffy lemon dessert. Combining lemon cake mix, instant lemon pudding, and lemon-lime soda, this recipe uses a slow cooker to create a light, sponge-like texture without heating up your kitchen. Perfect for gatherings or a cozy treat, serve it warm with whipped cream or ice cream for added indulgence.

Ingredients

Scale

Dry Ingredients

  • 1 box (about 15.25 oz) lemon cake mix
  • 1 box (3.4 oz) instant lemon pudding mix

Wet Ingredients

  • 1 can (12 oz) lemon-lime soda or lemon soda, room temperature

Instructions

  1. Prepare the Slow Cooker: Lightly coat the inside of a 4- to 6-quart slow cooker with nonstick cooking spray or a thin layer of butter to prevent sticking during baking.
  2. Mix Dry Ingredients: In a large bowl, whisk together the lemon cake mix and instant lemon pudding mix until evenly combined and no streaks remain.
  3. Add Soda: Slowly pour in the room temperature lemon-lime soda. Stir gently with a spatula or wooden spoon just until the batter is smooth and fully moistened, avoiding overmixing to keep the cake light.
  4. Transfer Batter: Pour the lemon batter into the prepared slow cooker, spreading it evenly for uniform cooking and creating a soft, sponge-like cake texture.
  5. Cover and Cook: Cover the slow cooker with its lid. For extra moisture, place a clean kitchen towel or paper towels under the lid to catch condensation without touching the batter. Cook on HIGH for 2 to 2 1/2 hours or on LOW for 3 1/2 to 4 hours until the cake is set and spongey. A toothpick inserted should come out mostly clean with a few moist crumbs.
  6. Rest the Cake: Turn off the slow cooker and let the cake rest uncovered for about 10 minutes to finish setting while maintaining moisture and tenderness.
  7. Serve: Spoon the warm lemon cake into bowls. Serve it plain as a zesty treat or with whipped cream or ice cream for extra indulgence. Keep the slow cooker on WARM if desired to allow for seconds.

Notes

  • Ensure the lemon-lime soda is at room temperature to avoid affecting the batter’s rising process.
  • Do not overmix the batter after adding soda to maintain a light texture.
  • Using a kitchen towel under the lid helps prevent too much condensation dripping on the cake, keeping it from becoming soggy.
  • Check the cake for doneness by inserting a toothpick; it should come out mostly clean with some moist crumbs but no wet batter.
  • The recipe works best with a slow cooker size between 4 to 6 quarts.
  • Serve with whipped cream or ice cream for a richer dessert experience.

Keywords: lemon cake, slow cooker dessert, easy lemon cake, 3-ingredient cake, slow cooker recipes