u/Accurate_Tomato8450

I have made these multiple times and they taste so good but so not have nooks and crannies 😥 any advice

https://theglucosegourmet.com/sourdough-discard-english-muffins/#tasty-recipes-8041-jump-target

Would you put a backing on these hats? Should I try an iron on one or is there another option?