First cut two strips of different fabric.
Cut a strip 1.5" wide of the flange fabric.
Cut a strip 1.25" wide of the binding fabric.
Sew the two strips together using a scant 1/4" seam.
Fold in half and press.
One side of your binding will be all flange fabric.
The opposite side will be your binding fabric with a 1/8" flange.
Sew the SEAM SIDE DOWN to the BACK of your quilt with a 1/4" seam.
Fold the binding to the front of your quilt and stitch in the ditch between
the flange and the binding fabric.
Voila! Your binding is done!