Easy Keto Rhubarb Crisp Recipe – Low Carb & Sugar-Free Dessert

Rhubarb crisp is a classic summer dessert, and this keto version lets you enjoy it guilt-free! With a crunchy almond flour topping and sweet-tart rhubarb filling, this low-carb treat is perfect for warm weather gatherings. It’s naturally gluten-free and uses sugar substitutes to keep carbs in check while delivering all the flavor of traditional crisp. Whether you’re new to keto baking or a seasoned pro, this recipe is simple enough for anyone to master.

Ingredients

For the rhubarb filling:

• 4 cups fresh rhubarb, chopped into 1/2-inch pieces
• 1/3 cup granulated erythritol or monk fruit sweetener
• 1 tbsp lemon juice
• 1 tsp vanilla powder
• 1/2 tsp cinnamon
• 1 tbsp butter, melted

For the crisp topping:

• 1 1/2 cups almond flour
• 1/4 cup coconut flour
• 1/3 cup granulated erythritol
• 1/2 cup chopped pecans or walnuts
• 1/2 tsp cinnamon
• 1/4 tsp salt
• 1/2 cup cold butter, cubed

Instructions

Prepare the Filling

1. Preheat oven to 350°F (175°C). Grease an 8×8 inch baking dish.
2. In a large bowl, combine rhubarb, sweetener, lemon juice, vanilla powder, cinnamon, and melted butter. Toss until rhubarb is evenly coated.
3. Spread mixture evenly in prepared baking dish.

Make the Topping

1. In a separate bowl, whisk together almond flour, coconut flour, sweetener, nuts, cinnamon, and salt.
2. Add cold butter cubes and use your fingers or a pastry cutter to work the butter into the dry ingredients until crumbly.
3. Sprinkle topping evenly over rhubarb mixture.

Bake and Serve

1. Bake for 30-35 minutes until topping is golden brown and rhubarb is bubbling.
2. Let cool for 10 minutes before serving warm. For a special treat, top with keto vanilla ice cream or whipped cream.

Tips and Tricks

• For extra texture, add 2 tbsp unsweetened coconut flakes to the topping mixture.
• If rhubarb is very tart, increase sweetener by 1-2 tbsp in the filling.
• Make ahead tip: Prepare the crisp topping up to 3 days in advance and store in the refrigerator.
• For a nut-free version, replace almond flour with sunflower seed flour and omit the pecans.
• Leftovers keep well covered in the refrigerator for 3-4 days. Reheat gently before serving.

If you love this keto rhubarb crisp, you might also enjoy our delicious keto rhubarb pie or these easy keto summer sugar cookies for more low-carb dessert ideas.

Frequently Asked Questions

Can I use frozen rhubarb?

Yes! Frozen rhubarb works well in this recipe. Thaw and drain excess liquid before using to prevent a soggy crisp.

What can I substitute for erythritol?

Any granulated keto sweetener will work. Monk fruit blend, allulose, or xylitol are good alternatives. Check our friends at receitapura for more sugar substitution tips.

Is rhubarb keto-friendly?

Yes! Rhubarb is naturally low in carbs with about 3g net carbs per cup, making it perfect for keto diets when sweetened appropriately.

Conclusion

This keto rhubarb crisp proves you don’t have to miss out on classic desserts while following a low-carb lifestyle. The combination of tart rhubarb and sweet, crunchy topping is simply irresistible. For more celebration-worthy keto desserts, try our keto graduation sheet cake or any of our other delicious recipes. Happy baking!

Keto Rhubarb Crisp

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