There is a chart on this site for making hst two ways. The second method is the one you are looking for! Looks like 8.5 inch squares to get 5.5 inch hst.
I have found that sewing each side separately instead of around in a circle works better for me.
Good luck. Ann
http://www.blossomheartquilts.com/20...maths-formula/
Last edited by krafty14; 01-28-2018 at 07:08 PM.