
This stunning citrus tart creates a natural ombre effect through carefully arranged layers of oranges. The tang of candied citrus pairs beautifully with silky vanilla mascarpone cream, all nestled in a tender peanut butter cake base.
The first time I served this at a dinner party, guests hesitated to cut into the beautiful orange spiral. But after the first bite, everyone was enchanted.
Essential Ingredients
- Mixed Oranges - Select at least three varieties: navel oranges for sweetness, regular oranges for juice, and blood oranges for deep color
- Mascarpone - Quality matters here. Let it soften at room temperature for one hour
- Peanut Butter - Use smooth, unsweetened variety for best texture
Step-by-Step Instructions
- 1. Preparing the Citrus
- Slice oranges very thinly using a mandoline
- Begin candying with the lightest colored oranges
- Cook until translucent but still holding shape
- Drain well on paper towels
- 2. Making the Cake Batter
- Beat eggs and sugar until pale and fluffy
- Add peanut butter gradually
- Mix in fresh orange zest
- 3. Assembly
- Arrange orange slices from center outward
- Create a spiral pattern with varying shades
- Pour batter carefully to preserve design
This tart has become our family's signature celebration dessert. My grandmother taught me that patience while candying the citrus is essential.
Perfecting the Cream
For silky mascarpone cream, whip the cheese until smooth before gently folding in whipped cream.
Syrup Secrets
Reserve the orange cooking syrup to brush the cake. It adds moisture and intensifies the citrus flavor.

Texture Balance
Three distinct layers - candied citrus, tender cake, and creamy mascarpone - create a perfect textural harmony.
Perfect Timing
Make this tart a day ahead. Overnight chilling allows flavors to fully develop.
This dessert has become my go-to for special occasions. It captures Mediterranean citrus groves in every colorful slice. While time-consuming to prepare, the stunning result creates an unforgettable culinary experience.
Frequently Asked Questions
- → Can the candied oranges be prepared in advance?
- Absolutely! Make them up to a week ahead and store them in their syrup in the fridge.
- → Is there a substitute for peanut butter?
- Sure, you can swap it with melted butter or neutral vegetable oil in the same amount.
- → How can I create the best gradient effect?
- Start by layering the lighter orange slices first, then gradually work toward placing the darker shades.
- → How long does the cake stay fresh?
- It keeps well in the refrigerator for up to three days, but the citrus topping looks its best on the same day.
- → Can this cake be frozen?
- Freezing isn't ideal—it'll change the texture of the candied oranges and cream.