I use FREEZER PAPER > draw the "reverse" pattern on paper side > cut out on the line > iron to wrong side of fabric > cut out fabric with approx. 1/4 inch seam allowance > pin to background > applique with same thread color as applique piece, BUT before finished that part, leave about 1/2 inch, pull the freezer paper out with tweezers (a part of my notions) and finish the applique.
I don't use any other way!!!! Good luck!