Candied Orange Olive Oil Cake

There's something about the smell of oranges simmering in sugar that stops me mid-afternoon. Years ago, a neighbor handed me a jar of candied citrus peel with a vague mention that it belonged in cake, and I became slightly obsessed with the idea. This olive oil cake emerged from that obsession—a tender, fragrant thing that tastes like Mediterranean sunshine but feels homey enough for a regular Tuesday. The candied oranges aren't just decoration; they're woven into every bite, their bittersweet tang playing against the bright citrus glaze.

I made this cake last spring for a friend recovering from surgery, and watching her face light up when she tasted it reminded me why baking matters. She kept asking if I'd bought it from a bakery, which felt like the highest compliment. That cake sat in her kitchen for three days, and by the last slice she was rationing it like it might disappear.

Ingredients

• Medium oranges (2 for candying, zest of 1 for cake): The zest is where the magic lives—all those tiny oils that make your fingers smell incredible, so use a microplane and don't be shy about pressing gently to get maximum aroma.
• Granulated sugar (1 cup for candying, 1 cup for cake): Split between two jobs, it creates the glossy candied slices and sweetens the crumb without making it cloying.
• Water (1 cup): Just enough to poach those oranges into translucency without drowning them.
• All-purpose flour (2 cups): The structure, but olive oil keeps it tender, so don't overmix or you'll lose that delicate crumb.
• Baking powder and baking soda (1 1/2 teaspoons and 1/2 teaspoon): Work together to lift the cake gently without the heaviness of butter would bring.
• Salt (1/2 teaspoon): Makes every other flavor sing louder.
• Extra virgin olive oil (3/4 cup): The soul of this cake—choose one you actually like drinking, because you'll taste it directly.
• Whole milk (3/4 cup): Room temperature matters more than you'd think; cold milk can seize the batter slightly.
• Eggs (3 large, room temperature): They emulsify the oil and create that pale, mousse-like base that traps air and makes the cake rise.
• Vanilla extract (1 teaspoon): A whisper of warmth that doesn't compete with the citrus.
• Powdered sugar (1 cup, sifted): For the glaze; sifting prevents lumps that catch your teeth.
• Orange juice and lemon juice (2–3 tablespoons and 1 tablespoon): Fresh squeezed changes everything, so don't even consider bottled.

Instructions

Candy those oranges first:

Combine sugar and water in a large skillet, stirring over medium heat until the sugar dissolves completely. Lay your orange slices in a single layer (they'll overlap slightly, and that's fine) and simmer gently for 20–25 minutes, flipping them occasionally so they candy evenly. They'll go from opaque to translucent and tender, almost like stained glass, which is when you know they're ready. Transfer them to parchment and let them cool completely—they'll firm up as they sit.

Get your oven and pan ready:

Preheat your oven to 350°F and grease a 9-inch round pan with butter or oil, then line the bottom and sides with parchment. This step feels fussy but it's the difference between a cake that slides out gracefully and one that sticks stubbornly.

Whisk the dry things together:

In a medium bowl, whisk together flour, baking powder, baking soda, and salt. This distributes the leavening evenly so you don't end up with dense pockets. Set it aside.

Build the wet base:

Pour sugar and orange zest into a large mixing bowl and rub them together with your fingers until the mixture smells like an orchard—this releases all those essential oils. Crack in your room-temperature eggs and whisk vigorously until pale and thick, about 2–3 minutes. Slowly drizzle in the olive oil while whisking constantly; this is where patience pays off because it keeps the emulsion from breaking.

Fold everything together:

Add half the dry mixture to the wet mixture, then half the milk and all the vanilla, stirring until just combined. Repeat with the remaining dry ingredients and milk, stopping as soon as no flour streaks remain. Overmixing here will toughen the cake, so use a light hand.

Layer and bake:

Arrange candied orange slices on the bottom of your prepared pan (they'll float up a bit, which is beautiful), then pour the batter over them and smooth the top gently. Bake for 45–50 minutes until a toothpick inserted in the center comes out clean or with just a few moist crumbs clinging to it. The kitchen will smell unreal at this point.

Cool with intention:

Let the cake rest in the pan for 15 minutes—this allows the crumb to set slightly so it doesn't shatter when you turn it out. Then invert it onto a wire rack and let it cool completely, which takes about an hour. Patience here means a perfectly even glaze later.

Make the glaze:

Sift your powdered sugar into a bowl (clumps in glaze are disappointing), then whisk in fresh orange juice and lemon juice until you have something that flows but still clings to the back of a spoon. If it's too thick, add juice one teaspoon at a time. Drizzle it over the cooled cake and scatter reserved candied oranges on top if you're feeling generous.

Pin It

My mother tried this cake for the first time and immediately asked if she could bring it to her bridge club, which I took as permission to give her the recipe. She's made it five times since, and each time she texts me a photo with a small complaint—one time the glaze was too thick, another time she used blood oranges and thought they were too dark. But she keeps making it, which tells me something stuck.

The Olive Oil Matters More Than You Think

I learned this the hard way by using whatever olive oil was on sale. The cake didn't taste wrong exactly, but it was flat in a way I couldn't place. When I switched to a proper extra virgin oil—grassy, peppery, alive—everything clicked. The oil is 40% of the fat in this cake, so it's not hiding in the background. Choose something you'd actually drizzle on bread, something that tastes like olives and soil and Mediterranean mornings. It's worth the extra few dollars.

Why Candied Oranges Are Worth the Wait

The first time I candied citrus, I was impatient and cranked the heat, which turned my orange slices into tough, shriveled things. Low and slow is the rule—twenty minutes feels long until you lift a slice and see it's translucent, glowing like amber in the light. Those candied pieces do double duty as flavor and decoration, so they deserve respect. Plus, you'll have extras to snack on or gift to people, which is its own reward.

Storage and Serving Suggestions

This cake gets better after a day, when the flavors settle and the oil fully hydrates the crumb. Wrap leftovers airtight and they'll last three days, maybe four if you're careful. It's lovely alongside Earl Grey tea, or with a small glass of Moscato d'Asti if you're leaning into the Mediterranean mood. You can also slice it into smaller pieces and freeze individual servings for up to two weeks, though honestly it rarely lasts that long.

• Serve slices at room temperature so the glaze and olive oil taste their best and the crumb has the right tender bite.
• If you're making this for a dinner party, bake it a day ahead and glaze it just before guests arrive so it feels freshly made.
• Blood oranges, Seville oranges, or even lemons work beautifully if you want to experiment with the candied element.

Pin It

This cake is the kind of thing that reminds you why you bake in the first place. It's not complicated, but it feels special.

Recipe FAQs

→ How do I make candied orange slices tender?

Simmer thinly sliced oranges gently in a sugar-water mixture for about 20-25 minutes until they become translucent and tender.

→ What’s the best oven temperature for baking this cake?

Preheat the oven to 350°F (175°C) and bake the cake for 45-50 minutes until a toothpick comes out clean.

→ Can I use other oranges for candied slices?

Yes, blood oranges work well and add a dramatic color and flavor twist to the candied slices.

→ How is the citrus glaze made?

Whisk powdered sugar with fresh orange and lemon juices until smooth, then drizzle over the cooled cake for a bright finish.

→ What can I substitute for milk in the batter?

Greek yogurt can replace milk for a slightly tangier, denser crumb without sacrificing moisture.