Print
clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon
Easy Rhubarb Custard Cake Recipe

Easy Rhubarb Custard Cake Recipe Ready in 70 Minutes

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

No reviews

This easy rhubarb custard cake uses a box of yellow cake mix topped with fresh rhubarb, sugar, and heavy cream. As it bakes, the cream sinks into the cake and forms a creamy custard layer. You get a soft, tangy, and sweet dessert with almost no effort.

  • Total Time: 80 minutes
  • Yield: 12 servings 1x

Ingredients

Scale
  • 1 box yellow cake mix
  • Water, eggs, and vegetable oil as required by the cake mix
  • 4 cups chopped rhubarb
  • 1 1/4 cups granulated sugar
  • 1 1/2 cups heavy cream
  • Whipped cream or Cool Whip for serving (optional)

Instructions

  1. Preheat your oven to 350 degrees F.
  2. Prepare the yellow cake mix according to the package directions. Pour the batter into a greased 9×13 inch baking pan.
  3. Spread the chopped rhubarb evenly over the batter. Sprinkle the granulated sugar on top.
  4. Pour the heavy cream evenly over everything.
  5. Bake at 350 degrees F for 60 to 70 minutes, until the top is golden and the center is set.
  6. Serve warm topped with whipped cream or Cool Whip. Store any leftovers covered in the refrigerator.

Notes

  • Do not stir after adding the rhubarb, sugar, and cream. Layering them separately is what creates the custard effect.
  • Fresh or frozen rhubarb both work. If using frozen, thaw and drain it first.
  • The cake is done when the top is golden brown and does not jiggle in the center.
  • This cake tastes great warm but is also good cold straight from the refrigerator.
  • Store leftovers in an airtight container in the refrigerator for up to 4 days.
  • Author: Emily Frost
  • Prep Time: 10 minutes
  • Cook Time: 70 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Nutrition

  • Serving Size: 1 slice
  • Calories: 380
  • Sugar: 38g
  • Sodium: 310mg
  • Fat: 18g
  • Saturated Fat: 8g
  • Unsaturated Fat: 9g
  • Trans Fat: 0g
  • Carbohydrates: 52g
  • Fiber: 1g
  • Protein: 4g
  • Cholesterol: 65mg