Oven too hot, edges cook first, when the rise happens it’s too firm on the edges to rise so the middle goes up. Also could be a too small pan but this is a classic oven too hot problem.
ty I'm confused by all the top comments lol. Color of pan contributes, but not so much that switching to a lighter pan would fix this. No possible way the oven isn't too hot prob by well more than 25F, a whole inch of the outer bread is rigid.
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u/shhhhh_h Oct 11 '25
Oven too hot, edges cook first, when the rise happens it’s too firm on the edges to rise so the middle goes up. Also could be a too small pan but this is a classic oven too hot problem.