Sounds deliciously practical, but let’s keep that “slip‑in‑the‑surprise” slot wide enough to swallow a whole lemon zest or a dash of smoked sea salt. A strict skeleton is great for the hard part—mix, fold, bake—but the fun is in the flour‑flying moments when a new flavor decides to crash the party. We’ll sketch the timeline, lock the steps that need precision, and leave a few minutes of open floor for that spontaneous taste‑bud rebellion. Trust me, the oven will thank you, and the flavor gods will be impressed.