This is so easy... and cheap. I keep repeating over and over.... never, ever use cooking spray (Pam) on your baking pans. Especially non-stick pans, it takes a nuclear explosion to remove it.
If you really want to spray and go, use Baker's Joy, but any spray tends to pool up in the bottom if you're spraying a muffin/cupcake pan.
This coating is so easy to use, and the last muffins I made slid out of the pan with no effort at all.
1/3 cup vegetable oil
1/3 cup vegetable shortening
1/3 cup flour
Mix well, use a mixer or a food processor. Store in a container in the fridge. Brush it on the pan with a pastry brush.
This makes a full cup (duh) which is enough to last a year, and it probably won't keep that long, unless you're making dozens of muffins every day. Just be sure to use equal portions of oil, shortening, and flour, and you'll be fine.
HINT: Get a silicone pastry brush. One of the best things I ever bought. The bristles don't get out of shape, you can use it on a hot skillet, and it washes up like new in the dishwasher.
