Close-up of a moist orange cake with glossy syrup-soaked orange slices arranged on top

Moist Orange Cake with Sticky Orange Syrup

This moist orange cake is soaked in warm citrus syrup while it’s still fresh from the oven, which is exactly why it stays tender for days. It’s a simple Nordic coffee cake — no layers, no frosting, just butter, eggs, orange and a sticky syrup that sinks all the way through the crumb. The glossy orange slices on top do all the decorating for you.

Close-up of a moist orange cake with glossy syrup-soaked orange slices arranged on top

Moist Orange Cake with Sticky Orange Syrup

A moist orange cake soaked in warm citrus syrup and topped with glossy orange slices — a simple Nordic coffee cake that stays tender for days.
Prep Time 25 minutes
Cook Time 1 hour
Soaking & Cooling 1 hour
Total Time 2 hours 25 minutes
Servings: 12 slices
Course: Dessert
Cuisine: Norwegian, Scandinavian

Ingredients
  

Cake
  • 300 g unsalted butter 1⅓ cups, softened, room temperature
  • 255 g granulated sugar 1¼ cups
  • 5 large eggs room temperature
  • 1 orange zest only
  • 75 ml orange juice 5 tbsp
  • 360 g all-purpose flour 3 cups
  • 1½ tsp baking powder
Orange Syrup & Topping
  • 150 ml fresh orange juice 2/3 cup, juice of about 2 oranges
  • 50 g granulated sugar ¼ cup
  • 2 oranges peeled, sliced about ¼ inch (5 mm) thick, seeds removed

Equipment

  • 9-inch (22 cm) springform pan A springform makes it easy to release this rich, syrup-soaked cake without breaking it.
  • Digital kitchen scale This batter is heavy on butter and flour — weighing beats cups every time.
  • Stand mixer Creaming 300 g of butter and sugar to properly light and pale takes a good 5 minutes.
  • Microplane zester Takes the orange zest without the bitter white pith underneath.
  • Wire cooling rack Essential here — the cake soaks while it cools, and you want air underneath.
  • Wooden skewer For testing doneness and poking the holes the syrup runs into.

Method
 

Cake
  1. Heat the oven to 350°F (175°C). Butter a 9-inch (22 cm) springform pan and line the base with parchment.
  2. Beat the butter and sugar until pale, light and creamy — a full 4–5 minutes. This is where the cake gets its lift, so don’t cut it short.
  3. Add the eggs one at a time, beating well after each one before adding the next. The batter should stay smooth and glossy.
  4. Mix in the orange zest and 5 tbsp (75 ml) orange juice.
  5. Sift the flour and baking powder together and fold into the batter until just combined. Scrape the bowl once so nothing hides at the bottom.
  6. Spoon the batter into the pan and level the top. Bake on the lowest oven rack for about 45 minutes, until the top is set but not yet fully baked through. Lay the orange slices over the top in a single layer, then return the cake to the oven for another 15 minutes, until the slices have caramelized lightly at the center and a skewer comes out clean. If the top browns early, tent it loosely with foil.
Orange Syrup & Topping
  1. While the cake bakes, warm the orange juice and sugar in a small saucepan, stirring just until the sugar dissolves. Don't reduce it — you want a thin, pourable syrup that soaks in.
  2. Take the cake out of the oven, release the springform ring and set the cake — still on the springform base — on a wire rack over a tray.
  3. Prick the warm cake all over with a wooden skewer, between the orange slices and right down into the crumb.
  4. Slowly spoon the warm syrup over the top, letting it soak in between additions. The syrup gives the baked slices a glossy, sticky finish.
  5. Leave the cake on the rack until completely cool before slicing. It gets better on day two.

Notes

Chef’s tip: everything goes in at room temperature — butter, eggs, juice. With this much butter, cold eggs will split the batter and you lose the air you just spent five minutes beating in. If it does curdle, add a spoonful of the measured flour and keep mixing; it comes back together.
Soak while both are warm. A warm crumb drinks the syrup; a cold one lets it run straight off onto the tray. That’s the whole difference between a moist orange cake and a dry one with sticky spots.
Make ahead: the cake keeps well covered at room temperature for 3–4 days and the crumb actually improves overnight as the syrup settles.
Pan options: a small sheet pan or a bundt/ring tin both work. Both bake faster than the springform, so start checking with a skewer well before the hour is up — a clean skewer means it’s done.
Weigh the flour if you can. 3 cups is an approximation — 360 g is the number that matters.

Why this moist orange cake actually stays moist

Most orange cakes taste of orange but bake out dry. The fix isn’t more juice in the batter — too much liquid and the crumb turns heavy. It’s soaking the cake after baking.

Close-up of a baked orange slice glazed with warm orange syrup, caramelized at the center, on top of a moist orange cake

A warm cake is porous. Prick it with a skewer while it’s still hot from the oven and pour warm syrup over the top, and the crumb pulls the liquid in rather than shedding it. Do it cold and the syrup pools on the surface and runs off onto the tray. Same ingredients, completely different cake. It’s the same trick we use on our easy rhubarb cake, brushed with a warm rhubarb syrup straight out of the oven.

Tips for the best orange cake

Cream the butter properly. Four to five minutes, until it’s genuinely pale and light. With 300 g of butter this is the only aeration the cake gets besides the baking powder.

Room temperature everything. Cold eggs hitting warm creamed butter is how batters split. Take the butter and eggs out an hour ahead.

Zest before you juice. Obvious, but easy to forget once you’ve halved the oranges. Use a microplane and stop at the white pith — that’s where the bitterness lives.

Bake low and slow. Lowest rack, 350°F (175°C), a full hour. A deep, rich batter like this needs time for the centre to set before the top takes too much colour.

Give it the skewer test. Clean skewer, done cake. If there’s wet batter clinging to it, give it another 5–10 minutes and check again.

Make it your own

Swap the oranges for blood oranges when they’re in season — the slices on top turn a deep ruby and the cake looks like you tried much harder than you did. Mixed citrus works beautifully too: alternate orange, blood orange and thin slices of lemon for colour and a sharper edge.

A splash of Grand Marnier or Cointreau in the syrup turns it into an evening cake. A little cardamom in the batter pulls it toward the Nordic side — it’s the same spice behind our cinnamon knots. And if you want it plainer, skip the slices entirely and just pour the syrup — the cake stands on its own.

Serve it with lightly whipped cream or crème fraîche. It doesn’t need it, but it doesn’t hurt.

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