The week ends at the stove

Most meal planners stop when you leave the shop. The part that actually happens every evening is the part after that.
Start from today, not from a search

Open the plan, open today, and the meal you already decided on is there with a way through to it. You are not searching a library at six in the evening for the thing you chose on Sunday.
The recipe, at the servings you are cooking

Amounts scale with the servings you set, so cooking a two-person recipe for six shows you what six needs rather than making you multiply in your head over a hot pan. The method is written in real paragraphs, headings and lists rather than one run-on block.
A timer on the same page

Countdown and stopwatch, side by side, with chips that add thirty seconds, a minute or five. It starts at five minutes and nothing seeds it from the recipe, because what gets timed is a step and a step is rarely the whole cook.
There is a focus mode for when it needs to be readable across the kitchen, and the alarm can be muted. The timer belongs to the page you are on, so leaving the recipe ends it.
Nothing here needs an account you do not already have, and nothing about the timer reaches a server. It runs in the page in front of you.