Christmas dessert fatigue is real, and fruitcake is not the answer. By the second week of December the grocery store is stacked with those little mesh bags of clementines, the kitchen windows are fogged up from the oven running all afternoon, and somebody at every holiday gathering is asking what you’re bringing for dessert.
This is what you’re bringing.
Sweet sticky clementine cake with candied oranges is the kind of dessert that looks like you spent all day on it and mostly didn’t. Whole clementines get boiled until they’re completely soft, blitzed into a smooth purée, and folded into an almond-based batter.
The result is a moist, tender, deeply citrusy cake with a caramelized top, finished with a glossy orange syrup, jewel-like candied orange slices, and a snowfall of powdered sugar. It’s festive without being fussy.
It’s also forgiving, which is the real selling point in the middle of December when you’re also wrapping gifts and trying to remember if you bought enough butter. The batter comes together in one bowl, the oven does the heavy lifting at 325°F, and while the cake bakes you make the candied oranges on the stovetop so the whole thing is done in one working session.
If you want a second dessert for the table that also screams holiday citrus, these cranberry orange cheesecake bars travel beautifully too.
How do you make a clementine cake with whole clementines?
The trick is in the first move: you boil the clementines whole, skin and all, until they’re completely tender. Around 20 minutes in rolling boiling water does it.
This softens the rind and blunts any bitterness so the peel becomes part of the flavor instead of a problem to solve. Don’t rush this step.
If the clementines aren’t fully soft, your blender will leave chunks in the batter and you’ll lose that even, plush crumb.
Once they’ve cooled enough to handle, you cut them in half to fish out any seeds, then blitz the whole fruit in a blender until it’s silky. That purée goes straight into a mixing bowl with the eggs, sugar, and a little lemon zest and gets whisked until it’s uniform.
Olive oil comes next, then the ground almonds and baking powder get folded in gently. Ground almonds are what keep the crumb moist and slightly fudgy rather than light and bready — the same way they do in a good carrot cake like this sourdough carrot cake muffin recipe.
The batter goes into a lined 8-inch cake tin and bakes for about 50 minutes, until the top is golden and set. While it’s in the oven you simmer thin orange slices with sugar and water until they turn soft and sticky, then whisk up a quick orange syrup.
When the cake comes out, you pierce the top all over with a fork and pour that syrup over it so it seeps down into the crumb. That’s where the “sticky” in the name comes from.
Why did my clementine cake turn out dry or dense?
A few things can go sideways here, and all of them are easy to avoid once you know what to watch for.
- The clementines weren’t boiled long enough. They need to be completely soft before blending. Any resistance when you press them means they need more time.
- The cake was overbaked. Almond-based cakes don’t give much visual drama at the end. Pull it once the top is golden and a skewer comes out mostly clean with a few moist crumbs.
- The syrup went on while the cake was piping hot. Let the cake cool slightly first so the syrup absorbs into the crumb instead of pooling on the surface and making the top soggy.
- The batter was overworked after the almonds went in. Fold, don’t whip. Ground almonds can go gummy if you beat them hard.
Even if the top looks a little rustic, the syrup and the candied oranges hide a multitude of sins. That’s the beauty of a sticky cake.
How do you make candied orange slices?
Candied orange slices are the part everyone asks about, and honestly they’re barely more work than making tea. You slice an orange very thinly — a sharp knife helps, and uniform slices look the best once they’re arranged on the cake — then slide them into a pan with the sugar and water over medium-low heat.
Let them simmer gently for about 20 minutes. You want them soft and translucent with a sticky, sweet glaze clinging to the peel, not crisp and not floating in a thin syrup.
Medium-low is the key: crank the heat and the sugar seizes and the oranges toughen up.
Storing extra candied oranges
Make a few more slices than you need and stash them in an airtight container in the fridge. They’re wonderful stirred into yogurt, layered into a trifle, or tucked into a lunchbox.
If you like a bit of crunch, you can also drag the wet slices through extra sugar and let them dry on parchment for a sparkling finish.
Can you make this clementine cake ahead of time?
Yes, and you probably should. The cake keeps beautifully in an airtight container at room temperature for up to three days, and the flavor actually deepens overnight as the syrup settles into the crumb.
That makes it a genuinely practical make-ahead dessert for Christmas Eve prep or a holiday potluck.
A few storage notes worth knowing:
- Store it at room temperature, not in the fridge. Refrigeration dries out almond cakes faster than you’d think.
- Keep the candied oranges on the cake the whole time. They hold up fine and keep the top moist.
- If you’re transporting it, let it cool completely and wrap the tin well. The sticky top travels better than buttercream does.
For another make-ahead sweet that stacks well in a container and makes a lovely little gift alongside this cake, try these mini egg cupcakes.
What do you serve with clementine cake?
Because the cake is so moist and syrupy, it doesn’t need much. A spoonful of softly whipped cream with a little vanilla is my first choice — the cool, airy dairy against the warm citrus is exactly right.
Crème fraîche is even better if you can find it, since the tang cuts the sweetness.
A few other ideas that work well:
- Mascarpone beaten with a spoonful of honey and a pinch of orange zest
- Vanilla bean ice cream if you want to go full dessert-parlor mode
- A small pour of dessert wine or a strong cup of coffee alongside
Whatever you serve it with, dust the top with powdered sugar right before bringing it to the table. It’s the final two seconds of effort that makes the whole thing look like it came out of a bakery window, and it pairs perfectly with a house full of fogged-up windows and cold December air.
Happy baking.
Sweet Sticky Clementine Cake with Candied Oranges
Description
Ingredients
Cake
- 3 small clementines skin on
- 4 eggs
- 1 teaspoon lemon zest
- 3/4 cup caster sugar
- 1/3 cup olive oil
- 1.5 cups ground almonds
- 2 teaspoons baking powder
For the Syrup
- 1 tablespoon sugar
- 1 orange juice and zest
For Decorating
- 1 orange thinly sliced
- 1 cup sugar
- 3/4 cup water
Instructions
- Preheat the oven to 325°F.
- Leaving the skin on, boil the clementines in boiling water for about 20 minutes until fully soft.
- Remove from the water and, once cooled, cut in half to remove any seeds.
- Add the clementines to a blender and blitz until smooth.
- Add the mixture to a mixing bowl with the eggs, sugar, and lemon zest and whisk together.
- Add in the olive oil and combine.
- Fold in the ground almonds and baking powder.
- Pour into a lined 8-inch cake tin and bake for 50 minutes until golden on top.
- While the cake is baking, make the candied oranges: thinly slice the orange, then add to a pan on medium-low heat with the sugar and water. Let them simmer for 20 minutes until the oranges become soft, sticky, and sweet.
- Once the cake is out of the oven, pierce it several times with a fork. Whilst it cools, make the syrup by melting the orange juice, zest, and sugar together on low heat until it forms a syrup.
- Pour the syrup over the cake.
- Decorate with the candied oranges and a dusting of powdered sugar.
Notes
- The clementines must be boiled until completely soft to create a smooth batter with no chunks.
- Let the cake cool slightly before pouring the syrup over so it absorbs well without making the cake soggy.
- Store the cake in an airtight container at room temperature for up to 3 days.
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