Baking
Vegan alternative to royal icing: the best substitutes
Everything you need to replace royal icing with a plant-based substitute — which one to use, the exact ratio, and the mistakes that ruin the result.
Short answer
Key takeaways
- Best all-round swap: Aquafaba royal icing (piping and flooding).
- Ratio: 3 tbsp aquafaba per egg white.
- Pro tip: Aquafaba icing takes longer to harden — leave decorated cookies overnight before stacking.
- 1 vegan alternatives to compare for royal icing.
Why royal icing isn't vegan
Set with egg white.
Best vegan substitutes
| Substitute | Best for |
|---|---|
| Aquafaba royal icing | Piping and flooding |
How to substitute royal icing, step by step
- 1
Pick the right substitute for the job
For most recipes use Aquafaba royal icing — piping and flooding.
- 2
Measure using the correct ratio
3 tbsp aquafaba per egg white. Weigh rather than eyeball it — small errors show up much faster when replacing royal icing.
- 3
Adjust the method
Aquafaba icing takes longer to harden — leave decorated cookies overnight before stacking.
- 4
Taste and correct
Plant swaps are usually a little less salty and less rich than royal icing. Season at the end and add acid (lemon, vinegar) or umami (miso, nutritional yeast) if the dish tastes flat.
Mistakes to avoid
- Swapping by volume when the recipe measures royal icing by weight — check the ratio above first.
- Using a sweetened or flavoured version in a savoury recipe.
- Ignoring the method change: Aquafaba icing takes longer to harden — leave decorated cookies overnight before stacking.
- Assuming every packaged product labelled "plant-based" is vegan — some still contain milk powder, honey or egg. Scan the barcode to be sure.
Conversion ratio
3 tbsp aquafaba per egg white.
Pro tip
Aquafaba icing takes longer to harden — leave decorated cookies overnight before stacking.
Replace the job, not just the ingredient
An egg can bind a burger, enrich a cake or create the foam in a meringue. Those jobs need different substitutes: ground flaxseed can help with binding, while aquafaba is useful for whipping.
Review the rewritten method as well as the ingredient list. Changing the amount of liquid, the cooking temperature or the resting time can matter as much as the substitute itself.
- A practical example
- For a creamy pasta, try unsweetened plant cream or blended silken tofu; add acidity and seasoning to taste rather than relying on a cheese substitute alone.
- What to keep in mind
- Substitutions can change allergens, texture and nutrition. Test a small batch before making a dish for guests.
Frequently asked questions
- What is the best vegan alternative to royal icing?
- Aquafaba royal icing is the closest all-round swap — piping and flooding. 3 tbsp aquafaba per egg white.
- Why isn't royal icing vegan?
- Set with egg white.
- How much do I use instead of royal icing?
- 3 tbsp aquafaba per egg white.
- Any tips for getting it right?
- Aquafaba icing takes longer to harden — leave decorated cookies overnight before stacking.
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