Colorado Rhubarb Crumble with Oat Topping
A classic Colorado dessert featuring tart rhubarb simmered with cinnamon and topped with a buttery oat crumble, perfect for summer harvests. This american-inspired desserts ready in about 65 minutes layers rhubarb, granulated sugar, all-purpose flour into a dessert worth slowing down for — great for weekend baking, holiday tables, or any time you want a sweet payoff at the end of a meal. Each serving lands at about 220 calories and feeds 6, so it slots into a weekend bake or a special-occasion dessert tray. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.
Ingredients
- 4 cups rhubarb
- 1/2 cup granulated sugar
- 2 tbsp all-purpose flour
- 1 tbsp lemon juice
- 1/4 tsp ground cinnamon
- 1/2 cup rolled oats
- 1/4 cup all-purpose flour
- 1/4 cup packed brown sugar
- 1/4 cup cold unsalted butter
Instructions
- Step 1: Preheat oven to 375°F (190°C). Grease a 9-inch baking dish.
- Step 2: In a bowl, combine 4 cups rhubarb (cut into 1/2-inch pieces), 1/2 cup granulated sugar, 2 tbsp all-purpose flour, 1 tbsp lemon juice, and 1/4 tsp ground cinnamon. Mix well and pour into baking dish.
- Step 3: In another bowl, combine 1/2 cup rolled oats, 1/4 cup all-purpose flour, 1/4 cup packed brown sugar, and 1/4 tsp ground cinnamon. Cut in 1/4 cup cold unsalted butter until mixture resembles coarse crumbs.
- Step 4: Sprinkle topping evenly over rhubarb filling.
- Step 5: Bake for 40-45 minutes until topping is golden and filling bubbles around edges.
Equipment for this recipe
Top-rated tools to make this recipe successfully.
Frequently asked questions
How long does Colorado Rhubarb Crumble with Oat Topping take to make?
Total time is about 65 minutes (20 min prep + 45 min cook). Most home bakers find this fits a weekend afternoon; chill or store as the recipe directs before serving.
How do I store leftover Colorado Rhubarb Crumble with Oat Topping?
Cool fully before storing. Most baked desserts keep at room temperature in an airtight container for 2–3 days, or in the fridge for up to 5 days. Cream- or custard-based desserts must go in the fridge within 2 hours; reheat gently or serve cold per the recipe.
Can I substitute ingredients in Colorado Rhubarb Crumble with Oat Topping?
Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.
How do I scale Colorado Rhubarb Crumble with Oat Topping for a different number of people?
The recipe is written for 6 servings. Multiply each ingredient by (your serving target / 6). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.
What goes well with Colorado Rhubarb Crumble with Oat Topping?
American desserts like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.
What others are saying
- ★★★★★
Great base recipe! I added a pinch of smoked paprika and it was even better.
- ★★★★★
Substituted chicken for tofu and it worked beautifully.
- ★★☆☆☆
Followed exactly and it was underwhelming. Maybe my expectations were too high.
