Baking
Vegan alternative to custard: the best substitutes
Everything you need to replace custard 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: Custard powder + plant milk (classic uk custard).
- Ratio: 1:1.
- Pro tip: Cornflour-set custard thickens as it cools — pull it off the heat just before you think it's ready.
- 3 tested vegan alternatives to custard in total.
Why custard isn't vegan
Egg and dairy-milk based.
Best vegan substitutes
| Substitute | Best for |
|---|---|
| Custard powder + plant milk | Classic UK custard |
| Silken tofu + vanilla, blended | Protein-rich pastry cream |
| Coconut milk crème pâtissière | Tarts and doughnuts |
How to substitute custard, step by step
- 1
Pick the right substitute for the job
For most recipes use Custard powder + plant milk — classic uk custard. If you need a different texture, Silken tofu + vanilla, blended works for protein-rich pastry cream.
- 2
Measure using the correct ratio
1:1. Weigh rather than eyeball it — small errors show up much faster when replacing custard.
- 3
Adjust the method
Cornflour-set custard thickens as it cools — pull it off the heat just before you think it's ready.
- 4
Taste and correct
Plant swaps are usually a little less salty and less rich than custard. 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 custard by weight — check the ratio above first.
- Using a sweetened or flavoured version in a savoury recipe.
- Ignoring the method change: Cornflour-set custard thickens as it cools — pull it off the heat just before you think it's ready.
- 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
1:1.
Pro tip
Cornflour-set custard thickens as it cools — pull it off the heat just before you think it's ready.
Frequently asked questions
- What is the best vegan alternative to custard?
- Custard powder + plant milk is the closest all-round swap — classic uk custard. 1:1.
- Why isn't custard vegan?
- Egg and dairy-milk based.
- How much do I use instead of custard?
- 1:1.
- Any tips for getting it right?
- Cornflour-set custard thickens as it cools — pull it off the heat just before you think it's ready.
Not sure if a product contains custard?
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