5-Ingredient Whole Orange Cake

Description

This Whole Orange Cake is moist, fragrant, and full of bright citrus flavor. Made with whole boiled oranges, almond flour, eggs, honey, and baking powder, it has a tender, slightly dense texture and a naturally golden crumb.

Using both the orange flesh and peel gives the cake its distinctive flavor. Boiling the oranges first softens the peel and helps mellow its bitterness. Once the oranges have cooled and the seeds are removed, everything comes together easily in a food processor.

Enjoy a slice with afternoon tea, serve it with fresh berries, or add a spoonful of Greek yogurt for a creamy contrast. There is no butter or oil in the batter, as the almond flour provides richness.

Prep Time: 15 minutes
Orange Boiling Time: 1 hour
Baking Time: 50–60 minutes
Total Time: Approximately 2 hours 15 minutes, plus cooling
Servings: 8
Cake Pan: 8-inch (20 cm) round cake pan, at least 2 inches deep

Ingredients

For the Orange Cake

• 2 medium sweet oranges, approximately 350–400 g total before boiling
• 6 large eggs, at room temperature
• 2 cups (approximately 200 g) finely ground blanched almond flour
• ½ cup (170 g) honey
• 1 teaspoon baking powder

Optional Serving Suggestions

These are additional to the five cake ingredients.

• Plain Greek yogurt
• Fresh berries
• Thin orange slices
• A light dusting of powdered sugar

Why You’ll Love This Recipe

• Only five ingredients: A short ingredient list keeps preparation straightforward.
• Full orange flavor: The softened peel adds citrus fragrance throughout the cake.
• Moist texture: Almond flour helps the cake stay tender after cooling.
• No complicated mixing: A food processor does most of the work.
• Easy to prepare ahead: The flavor develops nicely after a night in the refrigerator.

Step-by-Step Instructions

1. Wash and Boil the Oranges

Scrub the oranges thoroughly under running water. Place them whole and unpeeled in a saucepan and cover generously with water.

Bring to a boil, then reduce to a gentle simmer. Cook for approximately 1 hour, until the oranges are very soft and a knife passes easily through the peel. Add more hot water as needed to keep them mostly submerged.

For oranges with particularly thick or bitter peel, you can replace the cooking water halfway through simmering.

2. Cool and Remove the Seeds

Drain the oranges and allow them to cool completely before combining them with the eggs.

Cut the cooled oranges into quarters. Remove all seeds and any hard stem ends, keeping the softened peel and flesh. Discard the boiling water.

3. Prepare the Oven and Pan

Preheat your oven to 350°F (175°C), or 320°F (160°C) fan.

Line the base and sides of an 8-inch round cake pan with parchment paper. If using a springform pan, place it on a baking sheet to catch any possible leakage.

4. Blend the Oranges

Place the cooled orange pieces in a food processor. Process until you have a smooth purée, stopping to scrape down the sides as needed.

Check that no large pieces of peel remain. A smooth purée gives the finished cake a more even texture.

5. Make the Batter

Add the eggs and honey to the orange purée. Process briefly until thoroughly combined.

Add the almond flour and baking powder. Pulse just until the batter is uniform, scraping down the bowl once if necessary.

The batter will be moist and pourable, with a little texture from the almonds. It will not look exactly like a traditional flour-based cake batter.

6. Bake the Cake

Pour the batter into the prepared pan and smooth the top.

Bake on the middle rack for 50–60 minutes. Begin checking at 45 minutes, as ovens and the moisture content of oranges vary.

The cake is ready when the top is golden, the center is set, and a skewer inserted into the middle comes out clean or with a few moist crumbs. If the top browns before the center is cooked, cover loosely with foil.

7. Cool Before Slicing

Let the cake cool in its pan for approximately 20–30 minutes, then carefully transfer it to a cooling rack.

Allow it to cool completely before slicing. Almond flour cakes are delicate while warm and become easier to cut as they cool.

Serve plain or with Greek yogurt and berries.

Serving Suggestions

Serve this cake at room temperature to enjoy its full orange flavor. Plain Greek yogurt balances the sweetness, while raspberries or strawberries add freshness.

For an attractive presentation, arrange a few thin orange slices beside the cake rather than covering the entire surface. Cut with a sharp knife, wiping the blade between slices for neat portions.

Tips and Notes

• Use sweet oranges: Navel oranges are a good choice. Avoid bitter orange varieties.
• Keep the peel: It is an essential part of this whole orange cake.
• Cool before adding eggs: Hot orange purée can start cooking the eggs.
• Use almond flour: Finely ground blanched almond flour gives a smoother crumb than coarse almond meal.
• Measure carefully: Excess almond flour can make the cake heavy.
• Expect a moist crumb: This is a dense almond cake rather than a light sponge.
• Check the center: A browned top alone does not mean the cake is fully baked.

Easy Variations

• Warm spice: Add ½ teaspoon ground cinnamon.
• Vanilla orange: Add 1 teaspoon vanilla extract.
• Cardamom orange: Add ¼ teaspoon ground cardamom for a gently aromatic flavor.

These additions are optional and increase the ingredient count beyond five.

Make-Ahead Instructions

Boil, cool, and deseed the oranges up to 2 days ahead. Store them in a covered container in the refrigerator until ready to blend.

You can also bake the cake one day before serving. Once completely cool, cover and refrigerate it. Bring individual slices to room temperature before serving.

Storage and Freezing

Store the cooled cake in an airtight container in the refrigerator for up to 4 days.

To freeze, wrap individual slices tightly and place them in a freezer-safe container for up to 2 months. Thaw overnight in the refrigerator.

If you prefer a warm slice, microwave briefly in 10-second intervals, taking care not to overheat it.

Frequently Asked Questions

Does the orange peel make the cake bitter?

A little citrus bitterness is part of its flavor, but simmering softens and mellows the peel. Sweet oranges with moderately thin peel generally give a more balanced result.

Can I replace almond flour with regular flour?

Not as a direct substitution. Wheat flour absorbs moisture differently and would require changes to the recipe.

Can I use orange juice instead of whole oranges?

No. The blended peel and flesh provide structure and flavor that juice alone cannot replace.

Is this cake gluten-free?

The ingredients are naturally gluten-free, but use baking powder labeled gluten-free and check ingredient packaging if needed.

Why is my cake wet in the middle?

It may need longer baking, or the oranges may have been unusually large. Use the suggested orange weight and check the center before removing the cake from the oven.

Servings & Nutrition

Yield: 8 slices
Serving Size: 1 slice, without toppings

Estimated nutrition per serving:

• Calories: 295 kcal
• Protein: 10 g
• Carbohydrates: 28 g
• Total Fat: 18 g
• Saturated Fat: 2 g
• Fiber: 4 g
• Sugar: 22 g

Nutrition is approximate and varies with orange size and ingredient brands. Honey contributes sugar to the recipe.