If you've ever made cupcakes, you've probably noticed the bottoms are often greasy when they're done baking. There's an easy way to fix this: prep the muffin tin with rice.
How to Cake That explains that the rice absorbs the excess oil, leaving your liners grease-free. Here's how to do it:
To begin, add a heaping teaspoon of white rice (regular, not instant) to each cup in the cupcake pan. Next, evenly spread the rice so there is a nice even layer. If your cup has uncovered spots (like the one to the right in the photo), add a little more rice to achieve a nice evenly covered space. Place cupcake liners in the cups over the rice. Liners will sit slightly out of the cup. Fill liners with cupcake batter and bake according to recipe instructions.
To check it out for yourself, head to the link below.
Rice Trick- Grease-free Cupcake Liners [How to Cake That]