This is so easy to make, you don't even need a pattern!
Here ar the supplies you need:
2 coordinating 10" cotton fabric squares
2 10" sqaures of 100% cotton batting

Then just follow my easy tutorial in this video, it takes me about 10 to 15 minutes to make a complete cozy. And they are so nice to use when you warm soup or leftovers in the microwave. We love them in our family and like to give them with a container of homemade soup or a dry soup mix.

https://sisterchicksquilting.com/