Yeast Cake with Blueberries and Crumble Topping Recipe
Yeast cake with blueberries and crumble topping is a classic Polish summer bake made in a large pan, often after coming back from the forest. A fluffy, springy base is topped with a juicy, slightly tangy layer of blueberries and a thick, buttery crumble that bakes up pleasantly crunchy. The proportions of dough, fruit and crumble are balanced so the centre doesn’t collapse or turn soggy from the juice.
This kind of cake often appears in Polish homes during forest‑blueberry season, baked in a large pan for sharing in big pieces., In many regions it is a classic Sunday‑afternoon cake, especially where people pick blueberries themselves in nearby forests.
This yeast cake with blueberries and crumble smells exactly like a morning after mushroom or berry picking – the whole kitchen fills with the aroma of butter, yeast and forest fruit., The soft, fluffy crumb contrasts with the crunchy, buttery crumble and juicy blueberries that bake into a slightly sticky, purple “carpet” on top., It has the feel of a lazy countryside Sunday – baked in one big pan, not pretending to be an elegant dessert, but packed with flavour.
Why this version works
- Chilled crumble keeps distinct clumps and doesn’t disappear completely into the blueberry juice.
- A moderate amount of fruit gives juiciness without overloading the centre, which helps avoid a dense, underbaked layer.
- Letting the dough rise twice keeps the crumb light and fluffy despite the heavier fruit topping.
Chef's tips
If your kitchen is cool, let the dough rise in a switched‑off oven with the light on – the temperature will be stable and draft‑free., When stretching the dough in the tin, don’t use a rolling pin so you don’t knock out the air; gently press it out with your fingers until it is evenly thick., If the blueberries are very tart, you can sprinkle an extra tablespoon of sugar on top, but don’t overdo it so you don’t thin out the juice too much.
How to serve
It tastes best on the day of baking, still slightly warm, with tea and lemon or milky coffee., In hot weather, serve with a dollop of sour cream or thick plain yoghurt to balance the sweetness of the crumble., For a picnic, cut the cake into irregular squares and wrap in paper – it’s easy to eat by hand without plates.
Watch out for
- Do not put wet blueberries on the dough – thorough drying is key to avoiding a soggy, underbaked centre.
- Don’t skip the rise on the tray; dough that hasn’t puffed enough won’t support the fruit well and will be dense.
- Don’t bake much longer than stated – an overbaked cake dries out quickly; keep an eye on the colour of the crumble.
Substitutions
- Instead of wild blueberries you can use cultivated blueberries; cut larger berries in half.
- You can replace part of the blueberries with raspberries or currants to add more pronounced tartness.
- You can swap the milk in the dough for a neutral plant milk, such as oat milk, keeping the same proportions.
Ingredients
- wheat flour - 500 g
- milk - 250 ml
- yeast fresh or instant - 25 g
- sugar white - 80 g
- egg - 2 piece
- butter - 80 g
- salt - 0.5 teaspoons
- blueberries wild or cultivated - 400 g
- sugar for sprinkling the fruit - 2 tablespoons
- wheat flour for the crumble - 80 g
- sugar for the crumble - 50 g
- butter for the crumble - 50 g
Preparation
- Gently warm the milk until pleasantly warm but not hot. Crumble the yeast into a small bowl, add 1 tablespoon of sugar, 2 tablespoons of flour and a little milk, mix until smooth and leave for 10–15 minutes until a clear, fluffy foam appears on the surface.
- Put the remaining flour, sugar and salt into a large bowl. Add the risen starter, the eggs and the remaining milk. Knead by hand or with a dough hook for about 5 minutes, until the dough is uniform and starts stretching into long strands.
- Add the melted, cooled butter and knead for another 5–7 minutes. The finished dough should be smooth, elastic and come away from the sides of the bowl; when pressed with a finger it should spring back.
- Cover the bowl with a cloth and leave in a warm, draft‑free place for about 1 hour, until the dough has clearly doubled in volume. If it has barely risen after this time, give it another 15–20 minutes.
- Meanwhile, make the crumble: put the flour and sugar into a bowl, add the cold butter cut into cubes. Rub with your fingertips until you get clumps of various sizes, from small to larger ones; place the bowl in the fridge so the crumble chills well.
- Sort the blueberries, rinse them quickly and dry thoroughly on a paper towel, gently rolling them to remove water. The fruit should look matte, not shiny with moisture, otherwise they will release too much juice.
- Line a roughly 25×35 cm baking tin with baking paper. Briefly knead the risen dough, transfer it to the tin and gently stretch it out with your fingers into an even layer, forming a low rim along the edges to hold in the blueberry juice.
- Cover the tin with a cloth and leave for about 20 minutes, until the dough has puffed up again and feels soft to the touch. In the meantime, preheat the oven to 180°C, top and bottom heat.
- Scatter the blueberries over the risen dough, spreading them evenly and gently pressing them into the surface. Sprinkle with 2 tablespoons of sugar, then scatter the chilled crumble on top so that almost the entire surface is covered with clumps.
- Place the cake in the preheated oven and bake for 25–30 minutes, until the crumble is nicely golden and the edges of the cake slightly pull away from the tin. When lightly pressed, the centre should spring back and not feel wet or jelly‑like.
- Remove the baked cake from the oven and leave it to cool slightly in the tin. Serve slightly warm, when the blueberries form a thick, sticky sauce, or completely cooled when it is easier to cut into even pieces.
Storage
After 1–2 days the centre stays moist from the blueberries, but the crumble softens and loses some crunch., Reheat briefly at 150–160°C – the blueberries will smell intense again and the top will dry out slightly and become crisper.
I like the corners of the pan best, where the cake is a bit thicker and the blueberries form caramelised, slightly toasted pockets., I usually set aside a few pieces “for later”, but they still disappear the same day.
