Review on Boxiki Kitchen Silicone Muffin Pan with Steel Frame - Non-Stick Baking Mold, Includes BPA-Free Bakeware and 12 Silicone Muffin Cups for Professional Results by Pamela Whitworth

I've tried many and they all stick or leave marks (especially mini fries) even when sprayed, plus you can't put them directly in the oven, you have to put them on a baking sheet. Not this one! Totally easy to get in and out of the oven, baked my egg frittata perfectly, didn't stick or leave a residue, was easy to rinse and clean. Don't bother with other silicone cupcake liners - get these and you won't regret it. I'm ordering a second one this week.