I've made one without realizing that was what I was doing!! As some others said, I just stacked 4 layers of fabric with the pattern lined up and cut the size square I wanted. Worked like a charm! Simple!! After I did my quilt, a friend had me pick the pattern up for her when I went to the quilt shop. I didn't look at it very hard when I realized I had been there, done that without knowing I was doing a 4-patch posie!!