Step 1: Gather two squares the same size. Use the chart download below to determine the size you need.
Step 2: On the lighter of the two squares, on the wrong side, draw one line diagonally from one corner to the other. Use a ruler to make sure it is straight and in the center.
Step 4: Either draw another line on each side of the center diagonal line at a ¼” and stitch right on top of each of those lines OR use a ¼” foot and sew a quarter inch on either side of the line.
Step 5: Press to set the stitches.
Step 6: Cut along the drawn diagonal center line.
Step 7: Open each half square triangle (HST). Press seams open. Both HSTs are the same color combination.
Step 8: Trim each to desired size lining the diagonal seam of the HST up with the diagonal mark on ruler. Do not forget this step. It is the difference between corners that come together and a wonky quilt.
There are an endless number of patterns that use HSTs to make a huge impact.