after about 15 mins place one of them in a pie plate.
2Combine sugar and flour. Sprinkle 1/4 of it over the pastry in pie plate.
3Heap the Rhubarb over this mixture
4Sprinkle with the remaining sugar and flour.
5Dot with the butter...I use it cold out of the fridge and just cut into tiny cubes and spread over the pie.
6Take the other pie pastry and lay on the counter.
Next find your child's Ruler!
Cut strips that are about 1/2 wide across the whole pastry.
7Next lay one across the top and than another to make a big X...Than lay one again length wise and than one width wise while doing this make sure to lift up everyother strip to make it look as though it has been weaved.
When done just fold the edges up and moisten the lower crust edge with a little water on your finger and fold the excess dough from the weaving under and press lightly to seal....
9place pie on the lowest rack in the oven. Bake for 15 mins.