Egg wash substitutes: vegan glazes for shine and browning
Egg wash does two jobs. The proteins and fat in beaten egg brown quickly in the oven and set to a glossy finish, and the sticky film also works as glue for seeds and flaked toppings. No single vegan ingredient does everything egg does, but a handful of simple glazes cover most bakes. The right choice depends on what you want: deep colour, high shine, a soft matte crust, or just something for seeds to stick to. This guide compares the common options, shows how to apply them, and explains why some glazes burn or fail.
What a glaze actually does
Browning in the oven comes mostly from two reactions: the Maillard reaction between proteins and sugars, and caramelisation of sugars. A glaze that contains protein, sugar or both will brown more than a bare crust. Shine comes from a thin film that sets smooth, which is why fat and sugar syrups look glossy and plain water does not.
So the question to ask is which of the two you need. A rustic loaf may only need a little colour. A plaited sweet bread or a pie lid usually wants both colour and gloss. A tray of seeded rolls mainly needs something sticky.
The main options compared
| Glaze | Gives | Best for | Watch out for |
|---|---|---|---|
| Plant milk (soy, oat, almond) | Moderate browning, soft satin finish | Bread rolls, scones, pies, biscuits | Soy usually browns more than low-protein nut or rice milks |
| Plant milk plus a little maple syrup or sugar | Deeper colour, more gloss | Sweet buns, pie crusts, plaits | Sugar can darken fast at the end of baking |
| Neutral oil or melted vegan butter | Gloss, little browning | Savoury bread, flaky pastry, soft rolls | Can pool and fry the edge if applied thickly |
| Aquafaba, lightly whisked | Gloss and some colour | Pastry, pies, anything that wants a shiny top | Whisk only until loose and frothy; it should not be stiff |
| Maple syrup or agave thinned with water | Strong gloss, noticeable browning | Sweet pastry, buns, fruit tarts | Burns easily; may need foil part way through |
| Strong brewed coffee, cooled | Deep brown colour | Dark rye style loaves, pretzel shapes, gingerbread-type bakes | Colour only; adds a faint flavour |
| Water | Crisp, thin crust and a little seed grip | Crusty loaves, seeds | No real browning or lasting shine |
Plant milk and syrup washes
Plant milk is the easy default. Brush it on with a soft pastry brush just before baking. Soy milk tends to give more colour than most others because it contains more protein, while many nut milks and rice milks are thinner and produce a paler result. Whichever you pick, an unsweetened version is a safe starting point.
For a richer colour and a gloss closer to egg wash, stir about a teaspoon of maple syrup or sugar into a few tablespoons of plant milk. These are rough, commonly used proportions rather than fixed rules, so adjust to taste and to your oven. Because sugar browns quickly, a sweetened wash can go from golden to dark in the last few minutes. If the top colours early, cover loosely with foil or lower the shelf.
A pinch of ground turmeric stirred into plant milk is sometimes used to give a yellow tint that mimics egg yolk. It adds colour only, and a very small amount is enough.
Oil, vegan butter and aquafaba
Oil or melted vegan butter gives sheen rather than deep browning. Brush a thin layer on shaped dough before it goes in, or brush it on hot from the oven to soften the crust and add gloss. Use a thin coat: oil that runs down the sides of a tray can fry the base of a loaf.
Aquafaba, the liquid from canned chickpeas, contains proteins that brown and set a little like egg white. Stir it briefly with a fork until just loose; you do not need foam. It works well on pastry and pie tops and does not add noticeable flavour once baked. Our aquafaba guide covers how to get and handle it.
Keep every glaze thin. A thin coat brushed in one direction sets evenly. Thick glazes pool in creases and bake into dark, streaky patches.
Applying a glaze well
- Shape the dough or pastry fully first, and let a yeast dough finish its final rise before glazing so the brush does not deflate it.
- Use a soft brush and a light touch. Press hard and you can tear delicate dough or knock out air.
- Keep glaze off cut edges of laminated or puff-style pastry. Glaze running down a cut edge can seal the layers together and stop them rising.
- Add seeds, oats or flaked sugar straight after brushing, while the surface is still wet.
- Bake as directed. For sweet glazes, check colour a few minutes before the end, and tent with foil if the top is already dark.
- For a shine on a finished loaf, brush a little plant milk, oil or thin syrup on straight out of the oven.
Gluten-free doughs and savoury bakes
Gluten-free breads and pastries often brown less evenly than wheat doughs, and some blends stay pale. A glaze containing protein or sugar, such as soy milk with a little syrup, can help. Because many gluten-free doughs are wetter, the surface may already be sticky, so a very light brush is enough. If you bake for a coeliac household, check every glaze ingredient, including plant milk, for gluten statements on the label; some oat drinks, for example, are not gluten free unless labelled so.
For small sweet pastries, a light dusting of sugar on a plant-milk wash gives a crunchy top. For savoury bakes such as sausage-roll style pastries, use plain plant milk or oil rather than syrup, which can read as too sweet.
Troubleshooting
- Top browns but the inside is under-baked: lower the oven shelf or cover with foil rather than switching to a different glaze.
- Glaze looks patchy: it was applied unevenly or too thickly. Thin it with a little water.
- Seeds fall off: the wash dried before they went on. Brush again and add seeds immediately.
- No colour at all: use soy milk, add a little sugar, or switch to a syrup wash. Check your oven is reaching the temperature the recipe asks for.
What this guide is based on
- Which ingredients brown, shine or act as glue is general cooking knowledge based on the Maillard reaction and caramelisation. It is not a result from our own test baking.
- The proportions given, such as about a teaspoon of syrup to a few tablespoons of plant milk, are common rules of thumb. Plant milks, syrups and ovens vary, so treat them as starting points. Amounts in this guide are not from our own testing.
- The comparisons between plant milks (for example soy browning more than low-protein nut milks) are general expectations, not measured results.
- Allergy and coeliac statements are general. Read ingredient labels and ask a doctor or dietitian about your own needs.