A friend and I had a pattern to make a tortilla warmer and thought it would be a great gift with salsa etc. The pattern had 4 circles and 2 half circles and we can't figure out how to make it work. I am looking at them online and they look like the round version of the potato baker. If I do just 2 circles (each layered with warm tater batting) and sew around and turn right side out and then sew the 2 of them together half way so there is an opening to put the tortilla in, would that work? What would the 2 half circles be for? Thankf for your help.