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Olive Oil Grapefruit Cake

  • Author: shaemakes
  • Prep Time: 15
  • Cook Time: 60
  • Total Time: 75 minutes
  • Yield: 8 1x


Moist olive oil cake scented with rosemary and topped with a grapefruit glaze. The perfect dessert for your next girls night out, bridal shower or tea party.



For the cake:

  • 1 3/4 cup flour
  • 1 tsp baking powder
  • 1/4 tsp baking soda
  • 1 tsp salt
  • 3 eggs (room temp)
  • 1 1/4 cups sugar
  • 2 tsp grapefruit zest
  • 2 tbsp grapefruit juice
  • 1/2 cup sour cream (room temp)
  • 1/2 cup whole milk (room temp)
  • 1 cup high quality olive oil
  • Optional 1 tbsp fresh chopped rosemary

For the glaze:

  • 2 cups powdered sugar
  • 24 tbsp grapefruit juice
  • Optional: Pink food coloring
  • Optional: 1 tbsp fresh chopped rosemary


  1. Preheat the oven to 350 degrees.
  2. Grease and flour an 8 inch round cake pan.
  3. In a medium sized bowl combine flour, baking powder, baking soda and salt.
  4. In a separate medium sized bowl add sugar and eggs. Beat on medium speed for 2 minutes.
  5. Add grapefruit zest, grapefruit juice, sour cream and milk and beat for another 2 minutes on medium speed or until smooth.
  6. Alternate adding the dry ingredients and the olive oil to the egg mixture, a little bit at a time while your mixer is on low speed.
  7. Optional: Fold in fresh rosemary.
  8. Pour batter into prepared pan and bake for 45-60 minutes or until a toothpick entered in the center comes out clean.
  9. Remove from the oven and let cool for 10 minutes before carefully removing the cake from the pan and letting it finish cooling on a wire wrack.
  10. Meanwhile, make the glaze. In a medium sized bowl add powdered sugar and 2 tbsp of grapefruit juice. Stir and add additional tablespoons of grapefruit juice, 1 tbsp at a time until the mixture is smooth and just barely pour-able.
  11. Optional: Add pink food coloring to the glaze for a more vibrant color.
  12. Pour glaze overtop of the cooled cake.
  13. Optional: Sprinkle fresh chopped rosemary all over the top of the cake.
  14. Store leftovers in an airtight container.
  • Category: Dessert

Keywords: Olive oil cake, Olive oil grapefruit cake, cake, grapefruit cake, Olive oil rosemary cake, rosemary cake, Olive oil rosemary grapefruit cake, dessert, italian dessert