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

Custard powder + plant milk is the best all-round replacement for custardclassic uk custard. 1:1.

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

SubstituteBest for
Custard powder + plant milkClassic UK custard
Silken tofu + vanilla, blendedProtein-rich pastry cream
Coconut milk crème pâtissièreTarts and doughnuts

How to substitute custard, step by step

  1. 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. 2

    Measure using the correct ratio

    1:1. Weigh rather than eyeball it — small errors show up much faster when replacing custard.

  3. 3

    Adjust the method

    Cornflour-set custard thickens as it cools — pull it off the heat just before you think it's ready.

  4. 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.

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