On this phone

The bar under the name is the map. Swipe it sideways if a destination sits off-screen. On Tonight, the button pinned to the bottom cooks the lead dish.

  1. TonightWhat you can cook first, plus drinks that fit the same shelf.

  2. This weekFive dinners from the shelf, urgent things cooked first.

  3. ShelfEdit what you actually own.

  4. Written methodsEvery dish and drink with a method somebody wrote out.

  5. The pantryStart from one ingredient: what it does, and everything built on it.

  6. Out of itWhat to use instead, judged by the job the missing thing was doing.

  7. Photo reviewReview a demo shelf photo and confirm every item before adding it.

  8. Flavor LabPairings with a track record: classic matches and the mixology behind them.

  9. Wild cardsCombinations with no tradition behind them, only shared aroma notes.

  10. Send to Occasion OSPrepare confirmed shelf availability for Occasion OS.

  11. The fieldThe gap this layer owns.

Keep it on the home screen

  1. iPhone — tap Share, then Add to Home Screen.
  2. Android — open the browser menu, then Install app or Add to Home screen.

After that it opens as Kitchen & Bar, not a browser tab. Inventory stays on this device.

Substitutions · 8 dishes here use it

Out of arugula

Pepper and bitterness in a leaf, which makes it seasoning as much as salad. Heat wilts it in seconds, so it goes on hot food at the table, not before.

Everything below is judged against that job. A swap that covers it is a swap; one that only looks similar is not.

2 of the 8 dishes here that mention arugula list it as optional — 25% of them. In those, the correct substitution is nothing.

What to reach for

Instead · 1

watercress or mizuna

one for one

What it gets you
The same peppery bite in the same salad, and watercress is the sharper of the two.
What it costs you
Very little. Watercress stems are tougher and want trimming.

Instead · 2

baby spinach plus a grind of black pepper

one for one

What it gets you
A tender leaf in the same bowl with some of the heat added back.
What it costs you
The mustard bitterness, which is what cuts through a pizza or a prosciutto.

Instead · 3

radicchio or endive, sliced

half the volume

What it gets you
Bitterness and structure, and a leaf that will not wilt under a warm dressing.
What it costs you
The pepper, and these are much more bitter, so they want more fat and more sweetness.

Where you can just leave it out · 2

These dishes list arugula as optional. They were written to work without it, so no ratio is needed and nothing has to be bought.

Where the swap will be tasted · 5

These need it and are short enough that nothing hides: 4 required ingredients or fewer, which makes arugula a quarter of what is in the pan. Make the swap a decision rather than a repair.

Check what else is in the pan

The company arugula keeps in this library, counted off required ingredients. A swap that argues with the top two is the wrong swap, whatever a chart says.