*If you don't have a kitchen thermometer to measure the internal temperature of the muffins when cooking them, I'd recommend that you split the first one open when you're done to make sure it's fully cooked.
Overnight Rise:
After making the dough, place in the refrigerator to rise overnight. The following day, take the dough out of the refrigerator and, if not yet doubled in size, allow to rise further at room temperature. Once dough has risen to doubled, continue with step 6.
Recipe Adapted From: King Arthur Flour and Simmer Seasonal Recipes
Find it online: https://www.brighteyedbaker.com/sourdough-english-muffins/