"I rely on a cake mix to speed the prep for this moist streusel-topped dessert that pairs tart rhubarb with sweet strawberries. It's great all by itself, but feel free to add some frosting or ice cream. —Jackie Heyer, Cushing, Iowa..."
INGREDIENTS
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1 package yellow cake mix (regular size), divided
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1/2 cup packed brown sugar
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2 tablespoons butter
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2/3 cup chopped walnuts
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1 cup (8 ounces) sour cream
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2 eggs
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1/4 cup all-purpose flour
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1-1/2 cups finely chopped fresh or frozen rhubarb
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1-1/2 cups sliced fresh strawberries
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Cream cheese frosting or vanilla ice cream, optional