Start with cutting your fabric to the size you like. Cut two (a front and a back). Iron your fabric so that it is nice and flat. Also cut your filler. I use left over quilt batting. Cut it the same size as your fabric. For a fluffier hot pad, use two layers.
Now, fold both the top and the bottom -into the hot pad and pin closed. Try to fold in at least a 1/2 inch of fabric. Ironing will keep it in place a little easier.
Then I like to give it a quilted appearance...by sewing either some straight lines across, or a decorative stitch across.

