Easy Strawberry Rhubarb Crumble with Oats

Kruszonka z rabarbarem, truskawkami i płatkami owsianymi

It might come up as a surprise (it was to me when I realised it), but I’ve never used rhubarb in my kitchen before. Just like with sorrel leaves, I simply had no clue what to do with it and how to cook it.

The best way to break the ice with a new ingredient is to make something simple and relatively fail-proof. Otherwise, it’s easy to get discouraged and abandon it altogether.

Rhubarb crisp with fresh & juicy strawberries seemed to be a perfect choice for my rhubarby debut. It has a less formal vibe than a “proper” pie, and is a good thing.

My Strawberry Rhubarb Crumble – Step By Step

To be honest, I just made this recipe up and haven’t followed an exact formula. All of the ingredients (besides rhubarb and berries) were already in my kitchen cupboard.

I’ve noticed that rhubarb and strawberries release quite a bit of juice when gently stewed. To balance that fruity softness, I wanted for my crumble topping (in Polish: kruszonka) to be on a crispy side.

So I mixed flour, sugar and oats together and then rubbed in the butter with my fingertips to make a light, crumbly texture. This topping then went to the oven (it on it’s own) until it got a golden glow.

In the meantime, rhubarb and strawberries were cooking gently on the stove. Just for a little while – until they start to release their juices, while still keeping their texture. A bit of sugar and a splash of red wine aided the process.

Interesting fact: In Polish gardens, rhubarb started to be grown as a vegetable since the end of the 19th century.
Quoting the “Polish Gardener” (“Ogrodnik Polski”) from 1884: “Since the leaves may be at the end of May and in June – when the apples are not yet available – the rhubarb’s  value increases considerably. Due to the advantages mentioned, these plants are worth cultivating in gardens.”

Then it all went into a baking dish and stayed there for about a quarter of an hour. I served it with some sweetened soft cheese. It would also pair beautifully with a drizzle of custard, a cloud of whipped cream or even some vanilla ice-cream.

Drumroll Please: Did It Come Out Well?

What can I say… the moment I polished off my serving, I started dreaming about the next one.

Actually we (me + my significant other) loved it so much, I baked it twice this week! This warm, sweet crumble puts rhubarb and strawberries front and centre. The natural sweetness of the berries cuts through the rhubarb’s tartness.

Rhubarb comes and goes so fast, so let’s enjoy it as much as we can while it’s still here (wink, wink – what an excuse to eat tons of this crumbly goodness 🤪)

Rhubarb and Strawberry Crisp Crumble with Oats, served on a white plate with cream cheese, with a baking tray in the background, on a white marble table
Strawberry Rhubarb Crumble with Oats in a baking dish with one serving on a white plate, on a white marble background - view from above/flat lay

Easy Strawberry Rhubarb Crumble with Oats

Yield: 6 portions
Prep Time: 5 minutes
Cook Time: 25 minutes
Additional Time: 5 minutes
Total Time: 35 minutes

This strawberry rhubarb crumble with oats is a yummy serving of tangy rhubarb and sweet strawberries, topped with a crispy crumble. Tap for the recipe now!


For the Crumble

  • ⅞ cups (100g) plain flour
  • ¾ cup (approx. 70g) rolled oats
  • ¼ cup (50g) brown sugar
  • ½ cup/ 1 stick (100g) butter, cut into chunks

For the Filling

  • 1 lb (500g) rhubarb
  • 0.5 lb (250g) fresh strawberries
  • 3 tbsp red wine (optional)


  1. Preheat the oven to 200°C/390°F.
  2. Put the flour, oats and sugar in a bowl, rub in the butter with your fingers into a crumble texture.
  3. Sprinkle the crumble over a baking tray lined with an aluminium foil. Bake for around 10 mins, stirring up halfway.
  4. Chop the rhubarb into thumb-length chunks. Place into a saucepan with sugar and wine (wine is totally optional).
  5. Simmer on a very low heat for 10 mins, until the rhubarb softens up a bit.
  6. After that time, add halved strawberries and continue simmering for another 3-5 minutes until they soften, but hold their shape.
  7. Try the fruit. Add more sugar if needed.
  8. Pour the rhubarb & berries into a baking dish.

  9. Sprinkle the crumble topping over the fruit and bake for further 10-15 mins until golden.
  10. Leave to cool for a bit (for 5 minutes) before serving. Pair with sweetened cream cheese, ice cream or custard.
Nutrition Information:
Yield: 6 Serving Size: 1
Amount Per Serving: Calories: 303Total Fat: 16gSaturated Fat: 10gTrans Fat: 1gUnsaturated Fat: 5gCholesterol: 40mgSodium: 128mgCarbohydrates: 35gFiber: 4gSugar: 10gProtein: 4g

Save this “Strawberry Rhubarb Crumble with Oats” recipe to your “POLISH DESSERTS” Pinterest board! And let’s be friends on Pinterest!

Top view/flat lay of a baking dish containing Rhubarb and Strawberry Crumble on a white marble table, together with two individual plates / potrions ,served with creamed cheese

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Kasia Kronenberger Polish food blogger

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