A moist, citrusy upside down cake made with fresh blood oranges, olive oil, and Greek yogurt. Simple enough for a weeknight, stunning enough for a dinner party.
Prep the pan and preheat: Preheat your oven to 350°F (190°C). Grease your cake pan well with butter or a neutral oil spray. Drizzle 3 tablespoon of honey evenly across the bottom of the pan. Slice your blood oranges into thin rounds — around ¼ inch thick — and arrange them over the honey in a single layer. Set the pan aside.
2 whole blood oranges, 3 tablespoon honey
Beat the eggs: In a large bowl, beat the 3 eggs with the honey or stevia sugar, depending on what you are using, and a pinch of salt for 5 minutes using a hand or stand mixer on medium-high, until the mixture has roughly doubled in volume and looks pale and slightly foamy. This step matters — it gives the cake lift.
3 large eggs, 4 tablespoon honey OR 2 tablespoon stevia, ½ teaspoon salt
Add the wet ingredients: With the mixer running on low, slowly pour in the olive oil, then add the vanilla extract and orange zest. Mix until just combined. In a small bowl or jug, whisk together the orange juice, yogurt, and honey (or stevia). Pour this into the egg mixture and whisk for another 30 seconds.
⅓ cup + 1 tablespoon olive oil, 1 teaspoon vanilla extract, ½ cup fresh blood orange juice (from 2 oranges — zest first, then juice), Zest of 1 unwaxed organic orange, ½ cup plain Greek yogurt
Mix the dry ingredients: In a separate bowl, stir together the all-purpose flour, cornmeal, baking powder, baking soda, and salt until evenly combined.
1½ cups all-purpose flour, ⅓ cup fine cornmeal (or polenta), 1 teaspoon baking powder, ½ teaspoon baking soda
Bring it together: Slowly add the dry ingredients into the wet mixture and fold gently until just combined. Don't overmix — stop as soon as you can't see dry flour. Overmixing makes cakes tough, and we don't want that.
Pour and bake: Pour the batter over the blood orange slices in the prepared pan. Smooth the top gently with a spatula. Bake for 30 to 35 minutes, or until a toothpick inserted into the center comes out clean.
Cool and flip: Leave the cake to cool in the pan for 10 minutes — not longer. Run a knife around the edge, place your serving plate face-down over the pan, and flip in one confident move. Lift the pan off slowly. That's your moment.
Video
Notes
Blood oranges are in season January through March in the US. Outside of season, Cara Cara or navel oranges work as a substitute.
For a gluten free blood orange upside down cake, substitute with a 1:1 gluten-free flour blend containing xanthan gum.
Do not refrigerate — this cake stores best at room temperature.