This cheesecake began with a box of kumquats from my neighbor's tree. They are small, but they pack a punch. I wanted a dessert that honored their bright, bitter-sweet character without overwhelming the palate.
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Quark is a fresh cheese common in Scandinavia. It is lighter than cream cheese but still rich. It gives the cheesecake a cloud-like texture. The kumquats are simmered into a quick compote, then swirled through the batter.
The result is a cake that feels both familiar and new. It is not too sweet. The citrus cuts through the cream. Serve it chilled, with a cup of black coffee.
Why You'll Love This Recipe
About the Ingredients
1 1/2 cups (180g) graham cracker crumbs
Use any plain cookie crumbs. For a gluten-free version, use gluten-free graham crackers or almond flour.
1/4 cup (50g) granulated sugar
Regular white sugar works best. You can reduce to 2 tablespoons if you prefer a less sweet crust.
1/2 cup (115g) unsalted butter, melted
Salted butter also works; just skip the added salt in the crust. Coconut oil is a good dairy-free substitute.
2 cups (500g) quark (or Greek yogurt)
Quark is available in most supermarkets. If you can't find it, use full-fat Greek yogurt for a similar tangy, thick texture.
8 oz (225g) cream cheese, softened
Use full-fat cream cheese for best flavor and texture. Neufchâtel is a lighter option with fewer calories.
3/4 cup (150g) granulated sugar
For the filling. You can use coconut sugar, but the color will be slightly darker.
3 large eggs, room temperature
Room-temperature eggs blend more smoothly. If you forget, place them in warm water for 5 minutes.
1 teaspoon vanilla extract
Pure vanilla extract is best. You can use the seeds from half a vanilla bean for a more intense flavor.
1/2 cup (120g) sour cream
Full-fat sour cream adds richness. You can substitute with crème fraîche or plain yogurt.
1 cup (150g) fresh kumquats, sliced and seeded
If kumquats are not in season, use 1/2 cup of orange marmalade thinned with a little water.
Tips & Tricks
- Make sure all dairy ingredients are at room temperature to avoid a lumpy batter.
- Do not overmix the filling after adding eggs; overmixing incorporates too much air and can cause cracks.
- Chill the cheesecake for at least 4 hours before slicing. It sets properly and slices cleanly.
Pro Tips
Step-by-Step Instructions
1. Preheat and Prep
Preheat oven to 350°F (175°C). Grease a 9-inch springform pan. Mix graham crumbs, 1/4 cup sugar, and melted butter. Press firmly into the bottom and up the sides about 1 inch. Bake for 10 minutes until golden. Set aside to cool.
2. Make Kumquat Compote
In a small saucepan, combine sliced kumquats with 2 tablespoons of water and 1 tablespoon of sugar (optional). Simmer over medium heat for 5-7 minutes until soft and syrupy. Let cool completely.
3. Beat Cream Cheese and Quark
In a large bowl, beat cream cheese and quark until smooth. Add 3/4 cup sugar and beat until creamy. Add eggs one at a time, beating on low speed just until incorporated. Mix in vanilla and sour cream.
4. Pour and Swirl
Pour the filling over the cooled crust. Drop spoonfuls of kumquat compote onto the top. Use a knife to create a marbled pattern by swirling gently.
5. Bake
Place the pan on a baking sheet. Bake at 350°F (175°C) for 45-50 minutes, until the edges are set but the center is slightly jiggly. The internal temperature should reach 150°F (65°C). Turn off oven and crack the door, let cool for 1 hour.
6. Chill and Serve
Refrigerate for at least 4 hours or overnight. Run a knife around the edges before releasing the springform. Slice and serve cold.
Delicious Variations
Lemon Quark Cheesecake
Replace kumquats with 1/2 cup lemon curd and add 1 tablespoon lemon zest to the filling.
Berry Quark Cheesecake
Swirl in 1/2 cup raspberry or blueberry jam instead of kumquat compote.
Vegan Quark Cheesecake
Use vegan cream cheese and coconut yogurt in place of quark and sour cream. Use aquafaba instead of eggs.
How to Store Kumquat Quark Cheesecake
Refrigerator
Store in an airtight container for up to 5 days.
Freezer
Wrap cheesecake (whole or slices) in plastic wrap and foil. Freeze for up to 2 months. Thaw overnight in the fridge.
Reheating
Serve chilled. If you prefer it slightly warm, microwave individual slices for 10 seconds.
Frequently Asked Questions
Q: What is quark and where can I find it?
Quark is a fresh dairy product similar to Greek yogurt but thicker and richer. You can find it in most grocery stores near the yogurt or cream cheese. If unavailable, substitute with an equal amount of full-fat Greek yogurt.
Q: Can I make this cheesecake without quark?
Yes, you can use full-fat Greek yogurt or a mixture of ricotta and sour cream. The texture will be slightly different but still delicious.
Q: Why did my cheesecake crack?
Cracks occur when the cheesecake is overbaked or cools too quickly. To avoid, bake until the center is slightly jiggly, then cool slowly in the oven with the door cracked open.
Q: Can I use bottled kumquats or marmalade?
Yes, you can use kumquat marmalade or preserves. Just thin it with a little water to create a swirlable consistency, and reduce the sugar in the compote step.
Q: How long does this cheesecake last?
It keeps in the refrigerator for up to 5 days. You can also freeze it for up to 2 months. Just wrap it tightly.
I hope you enjoy this quiet little cake. It asks for nothing but time to chill. Make it on a slow Sunday, and let it be your companion through the week. Breathe, then unplug.
Kumquat Quark Cheesecake
Kumquat Quark Cheesecake: a light, creamy, dairy-rich dessert with a tart-sweet citrus swirl. Perfect for spring brunch.
🧂 Ingredients
- 1 1/2 cups (180g) graham cracker crumbs
- 1/4 cup (50g) granulated sugar
- 1/2 cup (115g) unsalted butter, melted
- 2 cups (500g) quark (or Greek yogurt)
- 8 oz (225g) cream cheese, softened
- 3/4 cup (150g) granulated sugar
- 3 large eggs, room temperature
- 1 teaspoon vanilla extract
- 1/2 cup (120g) sour cream
- 1 cup (150g) fresh kumquats, sliced and seeded
📋 Instructions
- 1Preheat and Prep — Preheat oven to 350°F (175°C). Grease a 9-inch springform pan. Mix graham crumbs, 1/4 cup sugar, and melted butter. Press firmly into the bottom and up the sides about 1 inch. Bake for 10 minutes until golden. Set aside to cool.
- 2Make Kumquat Compote — In a small saucepan, combine sliced kumquats with 2 tablespoons of water and 1 tablespoon of sugar (optional). Simmer over medium heat for 5-7 minutes until soft and syrupy. Let cool completely.
- 3Beat Cream Cheese and Quark — In a large bowl, beat cream cheese and quark until smooth. Add 3/4 cup sugar and beat until creamy. Add eggs one at a time, beating on low speed just until incorporated. Mix in vanilla and sour cream.
- 4Pour and Swirl — Pour the filling over the cooled crust. Drop spoonfuls of kumquat compote onto the top. Use a knife to create a marbled pattern by swirling gently.
- 5Bake — Place the pan on a baking sheet. Bake at 350°F (175°C) for 45-50 minutes, until the edges are set but the center is slightly jiggly. The internal temperature should reach 150°F (65°C). Turn off oven and crack the door, let cool for 1 hour.
- 6Chill and Serve — Refrigerate for at least 4 hours or overnight. Run a knife around the edges before releasing the springform. Slice and serve cold.
Ingrid explores mindful technology use and digital minimalism, helping readers reclaim focus. She writes about practical habits to reduce screen time and improve digital well-being.
