What this reminds me of is of some Korean stoneware for the kitchen. My mom loves cooking with hot stone bowls, she usually makes bibimbap but there are stews and other things you can make with them. The care for them is very particular, similar to how you’d want to treat cast iron, there is a curing and seasoning process for them that keeps them in good condition. They’re fabulous cooking implements, i recommend them if you want to wow some dinner guests with your cooking prowess 
