Indulge in the delightful tang of rhubarb perfectly balanced with a sweet, crumbly topping in this Keto Rhubarb Crisp. This low-carb dessert is surprisingly easy to make and offers all the comforting flavors of a classic crisp without the sugar or carbs. Get ready for a guilt-free treat that’s sure to become a favorite.

Why You Will Love This Recipe

This Keto Rhubarb Crisp is a winner for many reasons. It’s incredibly easy to prepare, making it perfect for weeknight desserts or when you need a quick sweet fix. The combination of tart rhubarb and a buttery, spiced almond-flour topping is utterly irresistible. Plus, it’s a fantastic way to enjoy a classic dessert while sticking to your ketogenic lifestyle. The crisp topping is made with wholesome ingredients like almond flour and cinnamon, offering a satisfying crunch and warmth with every bite.

Ingredients

• 4 cups fresh or frozen rhubarb, chopped
• 1/2 cup erythritol or your preferred keto-friendly sweetener
• 2 tablespoons unsweetened almond milk
• 1 teaspoon vanilla extract
• 1/2 cup almond flour
• 1/4 cup chopped pecans or walnuts (optional)
• 1/4 cup unsalted butter, melted
• 1 teaspoon ground cinnamon
• 1/4 teaspoon ground nutmeg
• Pinch of salt

Step-by-Step Instructions

1. Preheat your oven to 375°F (190°C). Grease a small baking dish (approximately 8×8 inches).
2. In a medium bowl, combine the chopped rhubarb with 1/4 cup of the keto sweetener, almond milk, and vanilla extract. Toss gently to coat.
3. Pour the rhubarb mixture into the prepared baking dish and spread it evenly.
4. In a separate bowl, combine the almond flour, remaining 1/4 cup of keto sweetener, cinnamon, nutmeg, and salt.
5. Add the chopped nuts (if using) to the almond flour mixture and stir to combine.
6. Pour the melted butter over the dry ingredients and mix with a fork until coarse crumbs form.
7. Evenly sprinkle the crisp topping mixture over the rhubarb filling in the baking dish.
8. Bake for 30-40 minutes, or until the topping is golden brown and the rhubarb is tender and bubbly.
9. Allow the crisp to cool for at least 10 minutes before serving.

Expert Tips / Pro Tips

For the best Keto Rhubarb Crisp, ensure your rhubarb is tender but not mushy before baking. If using frozen rhubarb, you may not need to thaw it completely, but be aware it might release more liquid. Don’t overmix the crisp topping; you want it to remain crumbly. For an extra layer of flavor, consider adding a touch of lemon zest to the rhubarb filling. Ensure your oven temperature is accurate for even baking.

Variations & Substitutions

Feel free to swap out the pecans or walnuts for other keto-friendly nuts like macadamia nuts or even pumpkin seeds for a different texture and flavor. If you don’t have almond flour, you can try coconut flour, but you may need to adjust the amount slightly as it absorbs liquid differently. For a richer topping, add a tablespoon of unflavored whey protein powder. You can also add a few drops of liquid stevia to the rhubarb mixture if you prefer a sweeter filling.

Serving Suggestions

This Keto Rhubarb Crisp is delicious served warm on its own. For an extra decadent treat, serve it with a dollop of chilled sugar-free whipped cream or a scoop of your favorite keto-friendly vanilla ice cream. A spoonful of full-fat Greek yogurt can also provide a lovely tangy contrast.

Storage, Freezing & Reheating

Store any leftover Keto Rhubarb Crisp in an airtight container in the refrigerator for up to 3-4 days. To reheat, simply place a portion in a microwave-safe dish and heat until warmed through, or gently warm it in a low oven. This dessert also freezes well; cool completely, then wrap it tightly and freeze for up to 2 months. Thaw in the refrigerator overnight before reheating.

Nutrition Information

Please note that nutrition information is an estimate and can vary based on specific ingredients used.

| Nutrient | Amount |
| ————— | ——— |
| Calories | ~250 kcal |
| Net Carbs | ~5g |
| Protein | ~7g |
| Fat | ~20g |
| Fiber | ~5g |

FAQ

Can I use artificial sweeteners other than erythritol?

Yes, you can use other keto-friendly sweeteners like monk fruit, stevia, or a blend. Adjust the amount according to the sweetener’s potency and your personal preference for sweetness.

Is rhubarb safe to eat on a keto diet?

Rhubarb is a great keto-friendly vegetable (often used as a fruit in desserts) because it’s low in carbohydrates and high in fiber. It’s perfectly suitable for a ketogenic diet.

My crisp topping is too dry/crumbly. What can I do?

Ensure you have added enough melted butter to create moist crumbs. If it still seems too dry, you can add another tablespoon of melted butter, a little at a time, until the desired consistency is reached.

Can I make this recipe ahead of time?

Yes, you can prepare the rhubarb filling and the crisp topping separately and store them in the refrigerator. Assemble and bake when ready to serve. Alternatively, you can bake the entire crisp ahead of time and reheat it.

What if I don’t have rhubarb?

While this is a rhubarb crisp, you can adapt the recipe using other low-carb fruits like berries (strawberries, raspberries, blueberries) or even cooked apples with a touch of cinnamon and sweetener. Adjust the sweetener in the filling based on the sweetness of the fruit.

Keto Rhubarb Crisp

A delightful and tart keto-friendly rhubarb crisp with a buttery, nutty topping. Perfect for a low-carb dessert.

Print Recipe Pin Recipe

Prep Time 20 minutes mins

Cook Time 35 minutes mins

Total Time 55 minutes mins

Servings: 6 portions

Course: Dessert

Cuisine: American

Calories: 280

Ingredients Method Notes

Ingredients

  

For the Rhubarb Filling

• 6 cups fresh rhubarb trimmed and cut into 1-inch pieces
• 0.5 cup erythritol or other keto-friendly sweetener, to taste
• 1 tablespoon lemon juice freshly squeezed
• 1 teaspoon vanilla extract
• 1 tablespoon xanthan gum optional, for thickening

For the Crisp Topping

• 1.5 cups almond flour
• 0.5 cup chopped pecans or walnuts
• 0.33 cup erythritol
• 0.5 teaspoon cinnamon
• 0.25 teaspoon salt
• 0.5 cup unsalted butter melted

Method

 

Instructions

1. Preheat your oven to 375°F (190°C). Lightly grease an 8×8 inch baking dish.
2. In a large bowl, combine the chopped rhubarb, 0.5 cup erythritol, lemon juice, and vanilla extract. If using xanthan gum, sprinkle it over the filling and toss to combine.
3. Pour the rhubarb mixture into the prepared baking dish and spread evenly.
4. In a separate medium bowl, whisk together the almond flour, chopped pecans, 0.33 cup erythritol, cinnamon, and salt for the crisp topping.
5. Pour the melted butter over the dry topping ingredients and stir with a fork until the mixture is crumbly and well combined.
6. Sprinkle the crisp topping evenly over the rhubarb filling in the baking dish.
7. Bake for 30-40 minutes, or until the topping is golden brown and the rhubarb is tender and bubbly. If the topping starts to brown too quickly, you can loosely tent it with foil.
8. Let the crisp cool for at least 10-15 minutes before serving. Serve warm, perhaps with a dollop of keto whipped cream or a scoop of sugar-free ice cream.

Notes

Ensure rhubarb is fully tender before removing from oven. The xanthan gum is optional but helps thicken the rhubarb juices for a better texture.