I meant to get this to you last night. Didn't happen. So here it is now, and here's the good news first. You're probably fine. If you're worried because you didn't feed your starter last night, take a breath. The levain build IS a feed. Twenty grams of starter into a hundred grams of flour is a 1:5 ratio, and that's a real refresh. As long as your starter has been fed sometime in the last few days and isn't dead in the back of your fridge, you can build right now and it'll work. It might take an hour or two longer to ripen. That's all. Only two of you need to do something different. If your starter has been sitting unfed for a week or more, feed it now at 1:2:2 and build your levain this afternoon instead. You'll mix around nine tonight instead of six, and Saturday morning shifts back an hour. Still works. And if your starter just isn't where you want it, bake the yeasted version tomorrow. Same bread, four hours, no timeline. There's no shame in that. It's the smart call. Now here's the whole thing. Friday, 8:00 AM. Build the levain. Twenty grams of mature starter, sixty grams of room temperature water, a hundred grams of bread flour. Stir the starter into the water first so it disperses, then work in the flour until you've got a stiff, shaggy ball. Cover it. Leave it at 75 to 78F. That's a stiff levain at sixty percent hydration, and I picked that on purpose. A wet, slack levain pushes acid. A stiff one ferments slower and stays sweeter. In a loaf carrying this much sugar, you want the tang present but not fighting. It's ready in six to ten hours when it's roughly doubled, domed on top, and smells sweet and yogurty instead of sharp. Friday, 6:00 PM. Mix. All 180 grams of levain, warm milk, eggs, then the flour, sugar, and salt. Mix, then feed the butter in slow, a tablespoon at a time. This takes longer than a yeasted dough. Be patient with it. Aim for a finished dough temp of 78 to 80F. Friday, 6:30 to 9:00 PM. Bulk. Two to three hours at 76 to 78F, with a set of folds at forty five minutes and again at ninety. You want it grown by about half. Not doubled. It finishes rising in the pan tomorrow.