Heat oven to 450 degrees F. Grease a 13 x 9-inch baking pan.
Make sauce by combining sauce ingredients and cooking until rhubarb is done.
Combine the 1 1/2 cups sugar and water; cook 5 minutes. Pour into prepared baking
Make biscuit dough by sifting together flour, baking powder, salt and the 1/3
cup sugar. Cut in shortening. Add milk and stir lightly. Knead on floured board.
Roll into a 12-inch square, 1/3-inch thick. Brush with melted butter. Spread dough
with cut rhubarb and roll as for a jellyroll. Cut into 1 1/2-inch slices and place
in syrup in pan.
Bake for 40 minutes. During baking, baste with the Sauce.