The problem with most substitution charts
Most of them tell you what to use and not how much, or they give you a ratio with no sense of what it will do to the finished dish. “Use applesauce instead of eggs” is true and nearly useless: it does not tell you that a quarter cup replaces one egg, that it covers moisture but not leavening, or that it will make your cake denser and slightly sweeter.
PantrySwap is built around the idea that a substitution has three parts, and all three matter: the exact ratio, the mechanism that makes it work, and an honest account of the trade-off.
How every swap is written
The ratio is anchored to the original ingredient and written so you can act on it without doing arithmetic. “1 cup buttermilk = 1 cup milk + 1 tbsp lemon juice”, not “add a little acid to milk”.
The reason explains the mechanism — fat content, acidity, starch behaviour, protein coagulation — because a cook who understands why a swap works can adapt it when their situation differs slightly from the example.
The trade-off is stated plainly. If a swap will not whip, will brown less, or will taste noticeably of coconut, that appears in the card rather than being discovered at the table.
What the ratings mean
Closest match — near-identical result. Use it without hesitating.
Reliable — it works, with a small detectable difference.
In a pinch — it will get you through, but expect a real change in the outcome. This rating is used freely and deliberately. Pretending every swap is excellent would make the ratings worthless.
Eggs are organised by function, not by form
There is no general answer to “what replaces an egg”, because an egg binds, leavens, adds moisture, emulsifies and sets, and the right substitute depends entirely on which of those jobs your recipe needs. A flax egg binds beautifully and leavens not at all. Whipped aquafaba leavens and binds nothing. So eggs have separate pages for binding, leavening and moisture.
About the allergen notes
Where a swap introduces a major allergen, or where someone is likely to reach for it because of an allergy, the card carries an allergen note. Those notes always say the same two things: read the label on the specific product, and treat a severe allergy as a medical matter rather than a recipe adjustment.
This is not excessive caution. Diet tags here describe ingredient categories, not brands. Soy sauce is brewed with wheat; oats are cross-contaminated unless certified; commercial spice blends often contain wheat-based anti-caking agents; vegan butter blocks are frequently soy- or nut-based. A chart cannot know what is in the jar in your cupboard.
Where the information comes from
The 1036 substitutions across 272 ingredients are established culinary knowledge — the kind of thing found in standard cooking references and professional practice — written up in original prose and sanity-checked against the well-known ratios. The classics are exactly where they should be: buttermilk at 1 cup milk plus 1 tablespoon acid with a 5-10 minute rest, fresh to dried herbs at 3:1, and 1 tablespoon of cornstarch equal to 2 tablespoons of flour for thickening.
Substitution is not an exact science, and a few ratios genuinely vary between sources. Where that is true, the card says so rather than projecting false precision.
Privacy
PantrySwap runs entirely in your browser. Search, the converters, your pantry and your saved swaps never leave your device. See the privacy page for the full detail.