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Classic Rhubarb Crisp

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Prep Time 30 minutes
Cook Time 55 minutes
Course Dessert
Servings 8 servings

Equipment

  • 9x13 inch Baking Dish
  • Large mixing bowl
  • Medium Mixing Bowl
  • Sharp knife
  • Cutting board
  • Measuring cups and spoons
  • Pastry Cutter or Fork

Ingredients
  

  • 2 pounds Fresh Rhubarb trimmed and cut into 1/2-inch pieces (about 6 cups)
  • 3/4 cup Coconut Sugar or maple sugar as natural sweetener alternative
  • 3 tablespoons Cornstarch for thickening without gluten
  • 1 teaspoon Pure Vanilla Extract alcohol-free preferred
  • 1 tablespoon Fresh Lemon Zest from 1 large lemon
  • 1 teaspoon Ground Cinnamon
  • 1/4 teaspoon Salt
  • 1 cup Old-Fashioned Rolled Oats
  • 3/4 cup All-Purpose Flour
  • 1/2 cup Coconut Sugar or brown sugar
  • 1/2 teaspoon Ground Cinnamon
  • 1/4 teaspoon Salt
  • 6 tablespoons Plant-Based Butter cold and cubed, or regular unsalted butter

Instructions
 

  • Preheat oven to 375°F (190°C). Lightly grease a 9x13 inch baking dish with butter or cooking spray.
  • Prepare the rhubarb by washing stalks thoroughly and trimming off any leaves (leaves are toxic). Remove any brown or damaged areas. Cut stalks into uniform 1/2-inch (1.25cm) pieces for even cooking. You should have about 6 cups of chopped rhubarb.
  • In a large mixing bowl, combine the chopped rhubarb, 3/4 cup coconut sugar, cornstarch, vanilla extract, fresh lemon zest, cinnamon, and salt. Toss gently but thoroughly until rhubarb is evenly coated and cornstarch is well distributed with no visible lumps.
  • Transfer the rhubarb mixture to the prepared baking dish, spreading it evenly. The natural juices will begin to release - this is normal and creates the perfect syrupy base.
  • In a medium bowl, whisk together oats, flour, 1/2 cup coconut sugar, cinnamon, and salt until well combined.
  • Add the cold, cubed plant-based butter. Using a pastry cutter or fork, cut the butter into the dry ingredients until the mixture resembles coarse crumbs with some pea-sized butter pieces remaining. This creates the perfect texture for a crispy topping.
  • Evenly distribute the crumble mixture over the rhubarb filling, covering completely. Gently press down slightly to help the topping adhere.
  • Bake for 45-55 minutes, until the topping is golden brown and the rhubarb filling is bubbling vigorously around the edges. The internal temperature should reach 200°F (93°C) for proper thickening.
  • Remove from oven and let cool for at least 15 minutes before serving. The filling will continue to thicken as it cools. Serve warm or at room temperature.

Notes

RHUBARB PREP TIPS: Only use the stalks - never the leaves as they contain toxic compounds. Young, tender stalks (1/2-3/4 inch thick) work best and require less sugar. Older, thicker stalks may need peeling if the skin is tough.
VISUAL DONENESS CUES: The topping should be golden brown and the filling should bubble actively around the edges. If topping browns too quickly, tent with foil for remaining bake time.
MAKE-AHEAD: Can be assembled up to 1 day ahead and refrigerated before baking. Add 10-15 minutes to bake time if starting from cold.
STORAGE: Cover and refrigerate for up to 4 days. Reheat individual portions in microwave for 30-60 seconds or warm entire dish in 350°F oven for 15 minutes.
SCALING: Recipe easily doubles for a crowd - use a large roasting pan and increase bake time by 10-15 minutes. Can also halve for smaller 8x8 inch pan with 10 minutes less bake time.
TROUBLESHOOTING: If filling seems too tart after baking, drizzle with honey or maple syrup. If topping isn't crispy enough, broil for 2-3 minutes watching carefully. Natural sweeteners may not dissolve as completely as white sugar - this is normal and adds rustic texture.

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