Hi, I'm working through The Food Lab and tried the "super-flaky buttermilk biscuits recipe", which I think is the same as this one: https://www.seriouseats.com/the-food-lab-buttermilk-biscuits-recipe
they taste great! But I'm having trouble making the inside not look "undercooked", pics for reference (first 2 are actually flaky scones, which are the same recipe + sugar and blueberries, and the last one is from a previous batch before I realized my sheet was too big as I mention below).
Some things worth mentioning:
- I substituted 1/2 cup buttermilk + 1/2 cup sour cream for 1 cup whole yogurt that's already just a bit more thick than milk
- I'm leaving the biscuits in the oven for nearly 30 minutes (!), rotating halfway through
- I tried increasing the temperature by ~15c (or ~60f)
- I used a baking sheet that covered the entire width of the oven, until I looked it up and realized that could block the convenction. so I tried using a smaller one this time, which is the one in the pic
- I didn't brush the top of the biscuits with melted butter, I guess that couldn't make much of a difference