Keto Rhubarb Crumble Tart – All Day I Dream About Food

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This candy keto rhubarb tart with a crumble topping is the right spring dessert. Easy, scrumptious, and completely sugar-free.

Titled image: top down photo of keto rhubarb tart on a white table, with a slice removed.

Have I ever talked about that I am a rhubarb fanatic? I am loopy about that stalky low carb vegetable and I’m all the time delighted to see its arrival in my native shops.

Yes, rhubarb is certainly a vegetable, though we are likely to deal with it as a fruit in baking and cooking. It’s a traditional for desserts, like my Keto Rhubarb Crisp.

Rhubarb is commonly paired with strawberries, comparable to in my Strawberry Rhubarb Dump Cake. But it doesn’t must be. It’s additionally amazingly scrumptious because the star of the present.

And on this scrumptious keto crumble tart, rhubarb undoubtedly performs the starring position!

Keto rhubarb crumple tart sits on a white cake stand.

Is rhubarb toxic?

There is a standard false impression that uncooked rhubarb is poisonous. In reality, I myself used to suppose so, as a result of my older brother bought fairly sick on rhubarb once we have been younger.

However, the rhubarb stalk is edible uncooked or cooked. The rhubarb leaves, however, include excessive quantities of oxalic acid and could be poisonous.

Most grocery shops and farmers markets promote the stalks solely, so there’s little danger of toxicity. If you develop your individual, do watch out to chop off all of the leaves earlier than cooking.

Keto Rhubarb Tart Inspiration

The foremost inspiration for this recipe was the rhubarb itself. I’ve been dreaming of rhubarb desserts since February and grabbed just a few stalks the second they hit the cabinets.

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But I am all the time saving recipe concepts on Pinterest and I not too long ago noticed this attractive tart from The View from Great Island. It was image good!

And with the latest success of my Keto Pumpkin Crumb Cake, I knew I might mimic that scrumptious crumble topping with my keto pleasant components.

Collage of three photos showing how to make keto rhubarb tart.

How to make Keto Rhubarb Tart

This is a simple keto recipe that ends in a pleasant dessert. Here are my greatest suggestions for getting it proper.

The pan

I suggest a steel tart pan with a detachable backside, like this one. It helps the crust crisp up correctly and it’s simpler to get the tart out of the pan.

If you don’t personal such a pan, you can also make this recipe as crumble bars in a steel eight-inch sq. pan. You might additionally use a springform cheesecake pan.

Be positive to grease the pan correctly!

The crust

This is an almond flour shortbread crust, so it doesn’t include any eggs. It’s designed to have a crumbly consistency. The coconut flour is necessary for getting that crumbliness, significantly within the high crust.

Press the underside crust firmly into the pan so it holds collectively somewhat higher. Then par-bake it for about 18 minutes. It received’t appear absolutely cooked at this level however it’ll agency up because it cools.

Just make sure you let it cool correctly!

The sweeteners

I know many individuals need to use the identical sweetener for all the things and hate when a recipe requires multiple. But keto sweeteners don’t behave like sugar in baking. You want to grasp their completely different properties to get the fitting outcomes.

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The crust takes Swerve as a result of erythritol is the one sweetener that correctly crisps up in crusts and cookies. You can simply do granulated Swerve in order for you.

The filling takes allulose as a result of it helps get the fitting syrupy consistency with out recrystallization. You might use powdered Swerve right here however simply know that it could grow to be a bit gritty because the tart cools.

Thickening the filling

Like many stalky greens, rhubarb releases loads of liquid throughout cooking. To keep away from making the crust soggy, I suggest pre-cooking it with somewhat liquid, after which thickening the combination.

For recipes like this, I like glucomannan to thicken the filling. But xanthan gum or perhaps a little collagen can work too.

A slice of keto rhubarb crumble tart on a white plate with a scoop of sugar-free vanilla ice cream.

Can you make keto rhubarb tart upfront?

This scrumptious crumble tart is greatest served contemporary. The rhubarb filling does start to melt the underside crust after the primary day.

That’s to not say it’s not completely scrumptious anyway! I gave a portion to my neighbour and he ate it warmed up for breakfast!

Do retailer any leftovers within the fridge.

A slice of keto rhubarb tart on a white plate over a red napkin.

More superb keto tart recipes

A slice of keto rhubarb crumble tart on a white plate with a scoop of sugar-free vanilla ice cream.


Rhubarb Crumble Tart

This candy keto rhubarb tart with a crumble topping is the right spring dessert. Easy, scrumptious, and completely sugar-free.

Course Dessert

Cuisine American

Keyword rhubarb tart

Prep Time 20 minutes

Cook Time 45 minutes

Total Time 1 hour 5 minutes

Servings 10 servings

Calories 247kcal


Rhubarb Filling

  • three cups chopped rhubarb
  • 2 tbsp water
  • 1/three cup allulose (or BochaSweet)
  • 1/four tsp glucomannan (or xanthan gum)



  • Preheat the oven to 325F and grease a 9-inch steel tart pan with a removeable backside.

  • In a big bowl, whisk collectively the almond flour, sweeteners, coconut flour, cinnamon, and salt, breaking apart any clumps with the again of a fork.

  • Stir within the butter till effectively mixed. Press about 2/three of the dough firmly and evenly into the underside of the ready pan. No must go up the edges.

  • Bake 15 to 20 minutes, till simply golden brown across the edges. Then take away and let cool a minimum of 15 minutes to agency up.


  • While the underside crust is baking, put together the rhubarb filling.

  • In a medium saucepan over medium warmth, mix the rhubarb, water, and allulose. Bring to a simmer and cook dinner 5 minutes, till softened and the rhubarb releases some juices.

  • Stir within the glucomannan and let cool to room temperature.

To assemble

  • Once the filling is cool, unfold evenly over the cooled backside crust.

  • Add the chopped nuts to the remaining crust combination. Sprinkle the crust combination over the filling, urgent calmly to stick.

  • Bake one other 20 minutes, till the highest crust is starting to brown. Remove and let cool completly within the pan.

  • Use a small sharp knife to softly loosen the facet of the pan and take away the edges earlier than chopping into slices.


Serving: 1serving = 1/10th of tart | Calories: 247kcal | Carbohydrates: 7.eightg | Protein: 5.7g | Fat: 21.9g | Fiber: three.9g

Guest submit by Carolyn

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