Windblown Square

1. Cut the pieces.

From background fabric (white) cut the following:

4 3/4 X 4 3/4 inch square--cut 1. This is your C square.
Note: you may want to cut this one on the bias to preserve the grainline of the block, since it's set into the block on point. However, this would make the square more difficult to handle, and it isn't strictly necessary.
7 1/4 X 7 1/4 inch square--cut 1. Cut into quarters along the diagonals, as illustrated below; these are your 4 A triangles.
3 7/8 X 3 7/8 inch square--cut 2, then cut each diagonally to make 2 triangles, for a total of 4 triangles. These are your B triangles.

From mauve fabric, cut:

7 1/4 X 7 1/4 inch square--cut 1. Cut into quarters along the diagonals, as illustrated above; these are your 4 A triangles.
3 7/8 X 3 7/8 inch square--cut 4, then cut each diagonally to make 2 triangles, for a total of 8 triangles. These are your B triangles.

Mauve and white are only for illustration--use any colors you like!

2. Sew the white A triangles to the mauve A triangles; sew the white B triangles to the mauve B triangles.

You'll be making:

There will be 4 small mauve triangles left over.

3. Sew the 4 leftover small mauve triangles to the center C square.

4. Add the 4 small mauve/white triangles.

5. Add the 4 large mauve/white triangles.

Admire.