From: Calgary Area of Alberta
Muffins take 18 minutes at 375 in my oven... drop temperature by 25 degree and when instructions say something like 18-20 minutes choose shorter length and check at 17 minutes... I had this problem when I moved from Montreal to Calgary because of elevation... dried up old brownies until a native calgarian gave me her recipe...
Shirley - Mom to Dickens (PuppyWuppy now known as Dicky Wicky)and Doyle (baby) and Baxter, Bella, Pistol, Cowboy, ChiChi at Rainbow Bridge
I sew on Janome 8000, 10001, 11000se, 12000, 350e, 300e, Janome 234d and Babylock Imagine