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Kumquat Upside-Down Cake

kumquat upside down cake on a gray plate with a cake server resting on the plate
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5 from 4 reviews

Delicious white cake topped with carmelized sweet & tart kumquats.

  • Author: Becky Schmieg
  • Prep Time: 30 minutes
  • Cook Time: 45 minutes
  • Total Time: 1 hour 15 minutes
  • Yield: 8 1x
  • Category: Dessert
  • Cuisine: American

Ingredients

Units Scale
  • 1 cup whole kumquats (approximately)
  • 1 cup plus 6 tbsp salted butter (room temperature)
  • 1/2 cup brown sugar
  • 1 1/2 cup all-purpose flour
  • 1 1/2 tsp baking powder
  • 1/2 tsp salt
  • 1 cup granulated sugar
  • 1 egg
  • 1 tsp vanilla
  • 1 cup milk

Instructions

  1. Preheat oven to 350F.
  2. Slice kumquats into 1/4 inch slices, removing the seeds as you go.
    sliced kumquats on a cutting board
  3. Melt 6 tbsp of the butter and add it to the bottom a 10-in baking pan with the brown sugar and mix well. Arrange kumquat slices in an even layer over the mixture.
    sliced kumquats in brown sugar and melted butter
  4. Whisk the flour, baking powder and salt in a medium bowl and set aside.
  5. Using an electric mixer on medium speed, beat remaining cup of butter with sugar until fluffy, about 5 minutes. Add egg and vanilla and beat until combined.
  6. Alternately add flour mixture and milk with the mixer on low, beating well after each addition. Use a rubber spatula to scrape down sides of the bowl as needed.
  7. Pour the cake batter over the kumquat slices (batter will be thick) and bake for 35-45 minutes or until a toothpick inserted comes out clean.
    cake batter being spread in pan with kumquats and brown sugar
  8. After removing from the oven, immediately invert onto a plate.
  9. Enjoy!
    kumquat upside-down cake on a gray plate with one slice cut

Find it online: https://www.figjar.com/kumquat-upside-cake/