I first posted the instructions for the Disappearing Four Patch on the sister blog called Cupcake Quilter in March 2011. I am going to copy and paste the post here today.Recipe
You will need the following to make one block:
A) One 5 x 5 inch blue plain/tone on tone.
B) One 5 x 5 inch red plain/tone on tone.
C) Two 5 x 5 inch white on white.
Sew together as above to form a four patch block. Press the seams open.