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Portuguese Orange Cake

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This Portuguese Orange Cake is a moist, fluffy, and citrus-packed dessert made with fresh orange juice and zest, perfect for any occasion.

  • Author: Emily
  • Prep Time: 20 minutes
  • Cook Time: 40 minutes
  • Total Time: 1 hour
  • Yield: 9 servings 1x
  • Category: Dessert
  • Method: Baking
  • Cuisine: Portuguese
  • Diet: Vegetarian

Ingredients

Scale
  • 2/3 cup butter, softened
  • 1 1/4 cups granulated sugar
  • 4 large eggs, separated (room temperature)
  • 3 large oranges, zested and juiced (room temperature)
  • 2 cups all-purpose flour
  • 1 tsp baking powder
  • Confectioners’ sugar for dusting (optional)

Instructions

  1. Preheat oven to 350ºF (180ºC). Grease or line an 8×8″ baking dish with parchment paper.
  2. Cream butter and sugar using an electric mixer until light and fluffy (about 2 minutes).
  3. Add egg yolks one at a time, beating well after each addition.
  4. Mix in the zest and juice of all three oranges. The mixture may appear curdled.
  5. In a separate bowl, whisk together flour and baking powder.
  6. Gradually beat the flour mixture into the wet ingredients until just incorporated.
  7. In a clean bowl, whip egg whites to stiff peaks.
  8. Fold one-third of the egg whites into the batter to lighten it, then gently fold in the remaining whites.
  9. Pour batter into the prepared pan and bake for 35–45 minutes, or until a toothpick inserted in the center comes out clean.
  10. Allow cake to cool completely in the pan. Dust with confectioners’ sugar before serving, if desired.

Notes

  • Use fresh oranges for maximum flavor.
  • Avoid overmixing to maintain a light texture.
  • Fold egg whites gently to prevent deflation.
  • Store at room temperature in an airtight container for up to 3 days.
  • Freezes well for up to 3 months when wrapped tightly.

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