"This rhubarb crisp in a cast iron skillet recipe is tart but sweet with the perfect crunch, and it's super easy to make!..."
INGREDIENTS
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5 cups rhubarb (chopped into 1-inch x 1/2-inch pieces)
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1 Tablespoon lemon juice
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1 cup granulated sugar
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3 Tablespoons cornstarch
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1 cup instant oats
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1/2 cup all-purpose flour
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1/2 cup brown sugar (packed)
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1/2 teaspoon ground cinnamon
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1/4 teaspoon salt
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1/2 cup butter (1 stick, cold and cubed)