Bakers comparing fat content
If custard will accompany a Christmas pudding or go into a simple bake, compare the fat figure per 100g on ready-to-serve products. A lighter-sounding name does not replace the nutrition panel.
Who is choosing custard?
Hosts who need ready-made custard
A tin can suit a dessert served cold or warmed shortly before serving. Check the heating directions if you plan to pour it over a warm pudding.
Bakers adjusting batch size
For a larger trifle layer or a filling whose consistency you want to control, custard powder is another format to consider. It needs preparation, and the finished recipe depends on what you add.
What matters when buying?
Start with the requirement that matters most to your bake, then check the current pack for the figures and instructions that affect it.
| Concern | What to check | Who this matters to |
|---|---|---|
| Fat content | Compare fat per 100g on the current pack; check sugars separately. Listed figures for the same named Ambrosia tin differ between Sainsbury's and Joybuy. | If keeping fat down is my main reason for choosing custard, I need a per-100g comparison that still fits my recipe. About 42% of consumers put that need first. |
| Ready-made use | Confirm that the custard is ready to serve and follow its directions if heating it. Check that the recipe calls for prepared custard. | When a festive tart or warm pudding needs custard without a separate preparation step, convenience becomes my priority. It comes first for about 33% of consumers. |
| Quantity and storage | Match the pack to the recipe quantity and read its refrigeration and use-after-opening instructions. | For a small filling or several desserts, I want an amount I can use within the pack's opened-life instructions, or the flexibility to prepare a batch from powder. Roughly 25% of consumers make that their primary concern. |
Checks that are easy to miss
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Reading 'reduced fat' as 'sugar-free'
A fat comparison does not tell you the sugar content. Joybuy Insights advises checking the nutrition panel rather than drawing conclusions from 'light' wording.
Compare fat and sugars separately, using the per-100g figures on the packs.
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Assuming low-fat custard is milk-free
Ambrosia Low Fat Custard lists milk ingredients. Its fat description does not establish whether it suits someone avoiding milk.
Check the current ingredients and allergen statement for the exact product before serving guests.
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Opening more custard than the recipe needs
A small bake may use only part of a pack. Ambrosia's opened-product instructions call for refrigeration and use within three days; Marks & Spencer gives two days for its Silky Smooth Custard.
Work out the recipe quantity before choosing a pack, and follow that pack's storage instructions.
Unused custard may have to be discarded if it cannot be used within the stated period.
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Boiling ready-to-serve custard
The directions for Ambrosia Low Fat Custard specify gentle heating with frequent stirring and say not to boil.
Empty it into a suitable saucepan or microwave-safe container and follow the pack's heating method; do not heat the can.
Brands and formats to consider
Ambrosia
Ambrosia Low Fat Custard is a 400g ready-to-serve can that can be served hot or cold.
- Sainsbury's lists 1.8g fat per 100g for this product; Joybuy lists 2.0g per 100g for the same named can.
- Check the current pack for the figure you are comparing and for its milk allergen information.
Tesco
Tesco lists reduced-fat ready-to-serve custard in 400g and 1kg formats.
- Tesco lists 1.7g fat per 100g for its 400g Reduced Fat Custard and compares its fat content with Tesco's standard 400g can.
- Check the format, current label and availability of the particular product you intend to use.
Bird's
Bird's Original Custard Powder is an alternative when you would rather prepare custard than open a ready-to-serve tin.
- Preparation lets you plan a batch for a recipe instead of buying a fixed amount of ready-made custard.
- Check the pack directions and assess the finished recipe using the ingredients you add; the powder is not itself a low-fat tinned custard.
M&S
M&S custards provide a comparison when flavour or texture takes priority over a lower fat figure.
- Marks & Spencer lists 3.7g fat per 100g for Silky Smooth Custard.
- Its Madagascan Vanilla Luxury Custard lists 13.6g fat per 100g, so check the particular product rather than treating the range as one option.
Ready-to-serve custard on Joybuy
This 400g tinned option is for a bake that calls for ready-made custard or for serving custard with a festive pudding.
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Ambrosia Low Fat Custard 400g
This ready-to-serve can suits recipes calling for prepared custard and can also be served hot or cold. Joybuy lists 2.0g fat per 100g, while Sainsbury's lists 1.8g per 100g for the same named product; check the current pack before making an exact comparison. It contains milk. After opening, refrigerate and use within three days; heat gently without boiling.
Questions about using and storing custard
How should I compare low-fat and reduced-fat custard?
Compare the fat per 100g on the current packs, rather than assuming the two descriptions mean the same thing. Tesco's 'reduced fat' description compares its 400g product with Tesco's standard 400g custard; check sugars separately if they also matter to your choice.
Is Ambrosia Low Fat Custard dairy-free?
No. The listed ingredients for Ambrosia Low Fat Custard include milk ingredients. Check the current pack's ingredients and allergen statement before serving it to someone who avoids milk.
Can I use ready-made tinned custard in a Christmas bake?
Yes, when the recipe calls for ready-made custard: Tesco Real Food's custard-tart recipe uses 300g as a filling. If serving Ambrosia Low Fat Custard warm, follow its directions to heat gently, stir frequently and avoid boiling.
How long can I keep custard after opening it?
Follow the instructions on the exact pack. Ambrosia Low Fat Custard directs you to refrigerate and use it within three days after opening, while Marks & Spencer's Silky Smooth Custard specifies two days.