I'm looking for a recipe from Isabel Coss. I saw it o Instagram, but I can't find it now. It was featured on Food 52. It's for Conchas, sweet bread.

Here's what an Internet search engine returns for search parameters "concha site:food52.com":

https://duckduckgo.com/?q=concha+site%3Afood52.com&ia=web

which reveals this article:

https://food52.com/blog/19073-the-tragicomedy-of-a-doomed-recipe-one-baker-just-couldn-t-quit

and this recipe:

https://food52.com/recipes/68063-mexican-concha-sweet-cookie-topped-buns

as the top two search results.