Serious Eats & The Food Lab (Kenji López-Alt)
Science-based, obsessively tested cooking technique — the "why it works" authority.
J. Kenji López-Alt's work — The Food Lab: Better Home Cooking Through Science (the book) and his years of columns at seriouseats.com — treats recipes as experiments: vary one thing, taste, explain the mechanism. This is where "why it works" sections come from: dry-brining, resting meat, emulsifying pasta water into sauce, the Maillard reaction in practice.
Reach for it when a recipe step feels like superstition and you want the mechanism (note: seriouseats.com blocks automated fetching, so agents should cite it from knowledge rather than link-check it; the resource URI points at the book instead).
Backs: roast chicken, spaghetti carbonara, the sourdough breads (focaccia, sandwich loaf), and the technique reasoning across the recipe collection.