Every page tells you an egg substitute. Almost none tell you what egg was actually doing, because almost none of them measured it.
We can. Across 85 recipes and 7,124 reviews, egg has exactly one confirmed effect on the finished cookie. Chew, the thing most people searching this are afraid of losing, is not it. 7 of the 13 egg-free recipes here land in the chewy group on their own.
Cooks who drop the egg tend to change several things at once, usually to replace the moisture and binding it would have added. That is a pattern across the corpus, not a rule any one recipe has to follow.
| What we measured | Egg-free average | With-egg average |
|---|---|---|
| Butter (as a share of flour) | 90% | 73% |
| Sugar (as a share of flour) | 75% | 106% |
| Share of that sugar that's brown | 0% | 1% |
| Added liquid (as a share of flour) | 19% | 2% |
| Chocolate & mix-ins (as a share of flour) | 69% | 98% |
The biggest gap is added liquid: egg-free recipes carry roughly nine times as much of it, because something has to stand in for the moisture an egg would have supplied. Applesauce, yogurt and tahini all show up doing that job in the recipes below. Butter and total sugar run lower too, which tracks with more of these being vegan builds rather than a straight one-for-one swap.
We tested how much egg a recipe uses against the six outcomes we can fit a vector for, not just the one that would make the best headline.
More egg in the dough gives a firmer, more finished middle. Less egg leaves it looser.
This is the one place egg showed up as a real lever across the whole corpus, not chew or spread. Egg protein sets as the cookie heats, and more of it means the centre stops changing sooner. That is what "underdone in the middle" and "fully set" are, mechanically.
Reviewers make almost no explicit claims about egg. There is exactly one, and it reads: “Add an extra egg yolk (skip the extra white) and lean toward more brown sugar for a chewier cookie.” 3 mentions back it and none argue against it. That is one anecdotal tip aimed straight at the outcome our data says egg does not move. It does not overturn what the corpus shows, but it is worth naming rather than leaving out. If chew is what you're protecting, the tips that actually move it are brown sugar and total sugar, not egg.
Of the 13 recipes here that use no egg at all, not one of them substitutes a replacer for it. They're just built without one.
from thebananadiaries.com 4.9 126 cooks rated it
It measures as chewy on our own scale, proof that skipping the egg didn't cost this recipe the texture people worry about losing.
Weights are ours, converted from the published measures. No egg, no egg replacer: the binding comes from the melted fat and the yogurt or applesauce standing in for the moisture an egg would add.
This recipe is Chewy & Soft Vegan Chocolate Chip Cookies (Better Than Tollhouse!) by thebananadiaries.com. It is their work, reproduced so you can bake from one page. The gram weights beside each ingredient are ours.
Most-rated first. A few of these are built for other restrictions too (dairy-free, gluten-free) and happen to drop the egg along the way.
13 of 85 recipes use no egg. That's enough to compare formulas and rank them, but it's the thinnest group on this site. Treat any pattern here as a lead, not a rule.
We cannot tell you a flax-egg ratio, an applesauce ratio or an aquafaba ratio, because published recipes almost never document swapping one for another inside the same formula. They're written egg-free from the start, or not at all. Recommending a ratio we cannot support with a measurement would be exactly the kind of unsourced confidence this site exists to avoid.
Where we say egg showed no detectable effect on chew, spread, edge texture, browning or sweetness, we mean exactly that, not that egg is inert. A real effect smaller than the noise across this corpus would look identical to us. If you notice a difference in your own kitchen, that's not a contradiction of anything on this page.