A delightful combination of tart rhubarb and a warm cinnamon-sugar topping, this Rhubarb Buckle is a comforting dessert with a moist, buttery base.
2 cups diced rhubarb
1 cup granulated sugar
1/2 cup unsalted butter, softened
2 large eggs
1 teaspoon vanilla extract
1 1/2 cups all-purpose flour
1 1/2 teaspoons baking powder
1/2 teaspoon salt
1/2 cup milk
1/4 cup brown sugar
1 tablespoon ground cinnamon