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Irresistible Upside Down Orange Cake with 3 Secret Twists

upside down orange cake

A moist upside-down orange cake with caramelized orange slices, made with olive oil for extra richness.

Ingredients

Scale
  • 2 medium oranges, thinly sliced (about 1/8-inch)
  • 1/3 cup granulated sugar
  • 2 tablespoons unsalted butter, melted
  • 1 1/2 cups all-purpose flour
  • 2 teaspoons baking powder
  • 1/2 teaspoon salt
  • 3/4 cup granulated sugar
  • 3 large eggs
  • 1/2 cup olive oil (or neutral oil)
  • 1/2 cup milk (or buttermilk)
  • 1 tablespoon orange zest
  • 1/3 cup fresh orange juice
  • 1 teaspoon vanilla extract
  • 2 tablespoons orange juice (optional glaze)
  • 2 tablespoons warm honey (or apricot jam, optional glaze)

Instructions

  1. Preheat oven to 350°F. Grease and line an 8-inch round cake pan with parchment, then grease again.
  2. Mix sugar with melted butter and spread over the parchment-lined bottom. Arrange orange slices in an overlapping pattern.
  3. Whisk flour, baking powder, and salt in a bowl.
  4. In another bowl, whisk sugar and eggs until pale. Whisk in oil, milk, orange zest, orange juice, and vanilla.
  5. Add dry ingredients to wet and stir just until smooth (don’t overmix).
  6. Pour batter gently over the orange slices. Bake 35–45 minutes, until a toothpick comes out clean. Cool 10 minutes.
  7. Run a knife around the edges, invert onto a plate, and peel off parchment.
  8. For extra shine, brush warm honey mixed with orange juice over the orange slices (optional).

Notes

  • Use thin orange slices for even caramelization.
  • Olive oil adds depth but neutral oil works too.
  • Glaze is optional but enhances flavor.

Nutrition

Keywords: upside down orange cake, orange slice cake, citrus upside down cake, caramelized orange slices, orange olive oil cake, glazed orange cake