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cast iron skillet rhubarb crisp top down view of crisp with three melting scoops of vanilla ice cream. skillet is surrounded by pink flowers

Rhubarb Crisp

Heather Wolf
Old-fashioned Rhubarb Crisp is a sweet and tangy taste of nostalgia. Made with farm stand rhubarb, hearty oats, brown sugar and cinnamon, this cast iron skillet recipe is simple and scrumptious.
5 from 1 vote
Prep Time 25 minutes
Cook Time 35 minutes
Total Time 1 hour
Course Crisps and Crumbles
Cuisine American
Servings 8

Ingredients
  

Rhubarb Filling

  • 5 cups fresh rhubarb sliced into 1/2 inch pieces
  • 1/2 cup granulated sugar
  • 1 Tbsp lemon juice freshly squeezed
  • 2 1/2 Tbsp cornstarch
  • 1 tsp vanilla extract pure

Crisp Topping

  • 1 cup old-fashioned oats
  • 1/2 cup dark brown sugar packed
  • 1/3 cup all-purpose flour unbleached
  • 1/2 tsp ground cinnamon
  • 1/4 tsp sea salt fine
  • 8 tbsp unsalted butter cold and cubed

Instructions
 

Rhubarb Filling

  • Preheat oven to 375 degrees. Grease the bottom and sides of a 9-inch cast iron skillet then set aside.
  • Place rhubarb and sugar in a medium-sized bowl. Stir to combine then set aside for 15 minutes.
  • Using a slotted spoon, transfer rhubarb to the cast iron skillet. Discard any excess liquid left in the filling bowl.
  • Add lemon juice, cornstarch and vanilla to skillet. Stir until evenly combined with rhubarb.

Crisp Topping

  • Add all topping ingredients to a medium-size bowl. Cut in butter with two forks until the mixture is crumbly and the butter is pea-sized.
  • Sprinkle topping over rhubarb filling in an even layer then bake for 35 to 40 minutes or until topping is golden brown and fruit juices are bubbly hot.
  • Remove skillet from oven and cool for 10 minutes to allow juices time to thicken. Serve warm with a scoop of vanilla ice cream.
  • To store, cool leftovers to room temperature then cover refrigerate up to 5 days.
Keyword crisp, rhubarb