Wrap leftover muffins individually in plastic wrap, place in a plastic storage container or ziplock bag and freeze for up to 1 month. To thaw, remove plastic wrap, wrap in a paper towel and microwave on Defrost for about 2 minutes.
DIY Muffin Cups: Make your next batch of muffins or cupcakes the ultimate grab-and-go treat by lining your tin with muffin liners. No liners? No problem. Use 5-inch squares of parchment paper, coat each muffin cup with cooking spray, and push each square into the cups using a small can or bottle, pressing the paper up the sides. (It's OK if some of the paper is sticking out over the rim.) Fill each cup as directed.