Oatmeal-Rhubarb Bars

Ingredients

 * 1 cup all-purpose flour
 * 3/4 cup oatmeal -- uncooked
 * 1 cup brown sugar -- packed
 * 1/2 cup butter, unsalted -- melted


 * 1 cup Sugar
 * 2 teaspoons cornstarch
 * 1 cup water
 * 1 teaspoon vanilla extract
 * 4 cups rhubarb

Directions

 * 1) Mix flour, oatmeal, brown sugar and butter until crumbly.
 * 2) Press 1/2 into greased 9" pan.
 * 3) Add rhubard, cut in 1/2" pieces.
 * 4) Combine Sugar, cornstarch, water and vanilla; cook till thick and clear.
 * 5) Pour sauce over rhubarb.
 * 6) Top with other half crumb mixture.
 * 7) Bake at 350F for 45 minutes.