Rhubarb Roly Poly

3 heaping cups buttermilk baking mix
1/3 cup granulated sugar
1/2 teaspoon cinnamon
2 cups or more rhubarb

Syrup:
1 cup granulated sugar
2 cups water

Using buttermilk baking mix, add enough water to make dough. Roll into rectangle. Spread with soft butter. Sprinkle sugar and cinnamon over the buttered dough. Cover with cut-up rhubarb and roll up like a jellyroll; slice. Place slices in greased baking pan and pour hot syrup over all.

Bake at 425 degrees F for 25 minutes. Top with vanilla ice cream or whipped cream while warm.

Syrup: Bring sugar and water to a boil for 5 minutes.