Ingredients
1 cup butter, softened2 cups packed brown sugar, divided1 large egg1 teaspoon vanilla extract1 cup whole milk2-1/2 cups all-purpose flour1 teaspoon baking soda1/4 teaspoon salt2-1/2 cups finely chopped fresh or frozen rhubarb1/2 teaspoon ground cinnamon
Preparation
In a bowl, cream butter and 1-1/2 cups brown sugar. Add egg and vanilla, beating until light and fluffy. Add milk; beat until smooth. Combine the flour, baking soda and salt; add to creamed mixture and mix well. Fold in rhubarb. Pour into a greased 13x9-in. baking dish.
Combine the cinnamon and remaining brown sugar; sprinkle over batter. Bake at 325° for 30-35 minutes or until a toothpick inserted in the center comes out clean. Cool on a wire rack.
