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  • Rhubarb cake with crumbles
  • Rhubarb crumble cake dusted with sugar, cut into squares, freshly baked
  • Crumble cake with visible rhubarb layer, close-up
  • Slice of rhubarb crumble cake with lilac on a dark plate, served
  • Crumble cake square in front of a cut tray bake with lilac

4 JUNE 2021

Rhubarb crumble cake

This post is also available in: deutsch

Last updated 8 June 2026

Prep
10 min
Cook
35 min
Total
45 min
Servings
1 sheet pan cake

Hello lovelies, before the rhubarb season is over, I really want to share this recipe with you: Rhubarb crumble cake. A delicious cake with a fluffy batter with spelt flour, of course rhubarb and on top of it sweet crumbles refined with almonds - we all know that this is always the best part of the cake.

Rhubarb crumble cake dusted with sugar, cut into squares, freshly baked

The rhubarb season continues until June 24th, St. John's Day, after which it should traditionally not be harvested anymore. I can't imagine that it will suddenly be inedible from the 25th onwards, but I think it is certainly not wrong to adhere to this rule. So it's best to bake this delicious cake soon, or freeze rhubarb, then you can enjoy the cake all year round.

Crumble cake with visible rhubarb layer, close-up

Cake, Kuchen, Süsses, SweetKuchen, Rhabarber, Vegan, vegan backen

Slice of rhubarb crumble cake with lilac on a dark plate, served

Rhubarb contains many minerals such as potassium and phosphorus - and when it comes to vitamins, the seasonal vegetables can score points: Rhubarb contains vitamin C and also fiber.

I always use spelt flour for cakes like this, because you can't taste the difference and the cake becomes really fluffy and delicious. The whole family loves it and visitors are always happy when I serve it.

Crumble cake square in front of a cut tray bake with lilac

Be sure to try the rhubarb cake with crumbles, I'm sure you will love it too. By the way, you can also use other fruits very well. Strawberries, cherries or stone fruits, which will soon be available, really all work very well.

If you want to make the most of rhubarb season, be sure to check out my moist rhubarb almond cake or try the fruity rhubarb berry crumble – and for a special dessert I can really recommend my strawberry rhubarb tiramisu. That way you bring spring to every table.

PINTEREST

If you have Pinterest, you can find me here and pin this picture:

Yours, Verena

TIPS

Verena's notes

Tip from my kitchen: toss the rhubarb with a little sugar and starch before layering it on, so the juice binds and the base stays fluffy rather than soggy. For extra crunchy crumbles, use cold vegan butter and knead it only briefly into coarse crumbs. You do not need to peel young stalks, just trim thicker ones. Covered, the cake stays moist for 2–3 days, and it freezes beautifully.

Rhubarb cake with crumbles

Rhubarb crumble cake

Moist vegan rhubarb crumble cake from a sheet pan: a fluffy spelt batter, a tangy rhubarb layer and crunchy almond crumbles. An easy recipe everyone loves.

  • Course:Cake
  • Keyword:rhubarb cake, crumble cake, vegan baking, seasonal, spelt flour
  • Prep:10 min
  • Cook:35 min
  • Servings:1 sheet pan cake
Vegan

EQUIPMENT

  • Backofen

INGREDIENTS

Teig:

  • 200gspelt flour or All-Purpose
  • 50gground almonds
  • pinch ofsalt
  • 1tspbaking powder
  • 1tspbaking soda
  • 100gcoconut blossom sugar or raw cane sugar
  • 1sachetvanilla sugar
  • 200mlplantbased milk (e.g. Oat, soy)
  • 50mlSparkling water
  • 75gvegan Butter
  • 1ELapple cider vinegar

Rhabarber:

  • 250gRhubarb
  • 1Tbspsugar
  • 1tspstarch
  • 1tspvanilla extract
  • Saft1/2lemon

Streusel:

  • 100gspelt flour
  • 25gground almonds
  • 75gvegan butter
  • 50gsugar of your choice
  • 1TLvanilla extract or powder
  • 1pinch ofbaking powder

INSTRUCTIONS

Batter

  1. Mix the dry ingredients
  2. Add in the moist ingredients and the butter in pieces
  3. Finally add the apple cider vinegar and mix everything into a smooth batter
  4. Don't overmix to keep the batter fluffy
  5. Grease a mold (approx. 20x30 cm) and fill in the dough
  6. Preheat the oven to 180 degrees

Rhubarb

  1. Wash the rhubarb, cut into pieces and mix with the other ingredients - let it steep for a moment

Crumbles

  1. Mix all ingredients, cut cold butter into pieces - knead into crumbles
  2. Place the rhubarb on the dough and sprinkle the crumble on top
  3. Bake for about 35-45 minutes
calories
290 kcal
GOOD TO KNOW

Frequently asked questions

  • Young, tender stalks do not need peeling, just wash them and cut into pieces. If the stalks are thick and stringy, pull off the outer fibers with a knife so the cake stays tender and not woody.

  • Yes, frozen rhubarb works well. Scatter it onto the batter while still slightly frozen so it does not release too much water. That way you can bake this cake all year round, even when rhubarb is out of season.

  • Rhubarb releases a lot of juice as it bakes. Toss it with a little sugar and starch first, the starch binds the juice and keeps the base fluffy instead of soaked.

  • Use cold vegan butter and knead it only briefly with flour, sugar and almonds into coarse crumbs, not into a dough. The larger the crumbles, the crunchier they turn out in the oven.

  • Covered, it stays moist for 2–3 days at room temperature thanks to the rhubarb. You can also freeze it and thaw individual portions whenever you like.

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