One 6.5" beige square and four 3.5" red squares. I washed the fabric first and checked the red for bleeding. This is a very important step as you all know!
The four squares are marked on the diagonal on the back and then sewn to the corners of the beige square. You can only do 2 at a time, opposite corners, press and trim. Then do the other 2 corners. Just like making a snowball block but with larger corner squares. Voila - a square in a square!
I also found that using a Sharpie (ultra fine point) is easier for me than a Micron pen.
The triangles that you trimmed can now be re-purposed into half-square triangle units. Mine came out 2.5" unfinished. They were oversized but I trimmed them down to perfect 2.5" squares.
The entire process (minus the fabric washing and picture taking) took about 30 minutes. I hope that you can find the time to add a little smile to our friend Kaaren. The deadline is July 15 and the mailing address can be obtained by emailing Allie (refer to Allie's blog - the first one listed above).
Hope that where ever you are, you are enjoying the day!