Not that I made this up - I saw it online somewhere and it looked easy. No bias edges to sew. Wendy had asked me to show how I do them, so this is especially for her.
First, I cut 5 inch squares. I wanted my contrast fabric to be white.
Then I take one white square and one colored square and lay them right sides together.
Using my 1/4" foot, I stitch around all sides, leaving no opening -
Not sure if you can see it really well, but all four sides have a seam.
Then it's over to the cutting table. Using my ruler and rotary cutter, I cut on the diagonal, from corner to corner.
Without moving the fabric, I then cut on the diagonal from the other corner.
And end up with four little triangles.
I finger-press them open,
And trim off the little corners that stick out with scissors.
Making 5 inch squares, I end up with 3 inch half-square triangles. Although I think they should be called half-triangle squares. But that may be due to brain fog. *G*
If you want bigger hst's, all you have to do is make bigger squares at the start. Don't ask me to do the math. As for putting them together, if you google hst quilts, you'll find hundreds of different patterns. I like this method best of all I've tried.
And now I'm off to finish writing a pattern before another busy weekend - I hope you all have a great one!
EDIT: Robin sent me a great link for figuring out what size squares to start with - thanks Robin! Link is HERE.
Also, I don't notice much stretch with this method - it works fine for me!