This traditional Ukrainian baked fermented milk is prepared in the ryzhanka style: whole milk is cultured with live sour cream, then slowly baked to develop a soft tan crust and a deep, gently caramelized flavor. The finished dish is thick, tangy, and creamy enough to eat with a spoon. Serve it chilled for breakfast or as a light, nourishing dessert.
Prep Time15 mins
Cook Time100 mins
Total Time115 mins
Servings4
Yield4 cups (about 4 servings)
Nutrition Facts
Per serving (estimated)
- 240 kcalCalories
- 12 gFat
- 7 gSaturated Fat
- 18 gCarbs
- 0 gFiber
- 17 gSugar
- 9 gProtein
- 210 mgSodium
- 380 mgPotassium
- 300 mgCalcium
- 0.2 mgIron
- 2 mgVitamin C
- 115 mcgVitamin A
Ingredients
For the cultured milk base
- 4 cups (960 ml) whole milk, preferably unhomogenized
- 1/2 cup (120 g) full-fat live-culture sour cream or kefir
- 2 tablespoons (25 g) granulated sugar, optional
- 1 teaspoon pure vanilla extract
- 1/4 teaspoon fine sea salt
For serving (optional)
- 1/2 cup mixed fresh berries
- 2 tablespoons honey or extra sour cream
- 1 tablespoon chopped toasted walnuts
Directions
- Pour the milk into a heavy-bottomed saucepan and bring it just to a bare simmer over medium heat, stirring frequently so the bottom does not scorch; once small bubbles ring the edges, remove from the heat.
- Stir in the sugar and salt until dissolved, then let the milk cool to about 110°F (43°C) so it feels warm like bathwater but is no longer hot.
- Whisk the sour cream (or kefir) into the warm milk until completely smooth, then stir in the vanilla; this introduces the live cultures that will thicken and gently ferment the milk.
- Pour the cultured milk into a wide ceramic or glass oven-safe baking dish (about 8×8 inches), cover tightly with a lid or foil, and leave in a warm, draft-free spot for 8 to 12 hours until the milk has thickened and smells slightly tangy.
- Preheat the oven to 250°F (120°C), uncover the dish, and bake for 60 to 75 minutes until the surface develops a pale golden-tan color and the mixture has reduced to a thick, spoonable consistency.
- Carefully lift out of the oven (it will be very hot) and set on a wire rack to cool to room temperature, about 45 minutes.
- Cover and refrigerate for at least 4 hours or overnight so the fermented milk chills fully and sets into a soft, creamy spoonable curd.
- Scoop into small bowls, swirl with honey or extra sour cream, and top with fresh berries and toasted walnuts just before serving.
Cook’s Notes
- Use the freshest, highest-fat whole milk you can find; non-homogenized milk gives the richest, most traditional texture.
- If you do not have a warm spot for culturing, place the covered dish in an oven with just the pilot light on or wrap it in a thick towel on a heating pad set to low.
- For a deeper caramel flavor and a darker top, raise the oven temperature to 275°F (135°C) for the final 15 minutes of baking.
- Traditional ryzhanka is often made without sugar; rely on the natural lactose sweetness and increase the vanilla for a rounder finish if you omit it.
- The dish keeps well covered in the refrigerator for up to 4 days; stir gently before serving as a little whey may pool on top.








