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Syns & Slimming World

How Many Syns in Colmans Sauce Mixes?

By Jenny Updated

Colmans sauce mixes are one of those store-cupboard rescue packets that turn a plain chicken breast or pile of mince into something resembling a proper dinner, and the good news for Slimming World members is that, per person, they slot in at a very manageable syn cost. The little 25-40g sachets — think Chicken Chasseur, Beef Stroganoff, Shepherd's Pie, Cheese Sauce or Parsley Sauce — are essentially seasoned flour blends, so the syns come from the starch and any added fats or dried dairy rather than from anything you would call indulgent.

Made up to the packet instructions, a typical sachet serves four, which brings each portion in around the 1.5 to 2 syn mark. That is a small price for transforming a Speed-veg-and-lean-protein plate into a Sunday-lunch-style meal.

A clever workaround that long-standing members swear by is making the sauce with skimmed milk taken from your Healthy Extra A allowance, then stretching the finished sauce with extra steamed vegetables — cauliflower, leeks or mushrooms drink up parsley or cheese sauce beautifully and pad the dish without adding syns. Mince-based sachets like Shepherd's Pie and Chilli Con Carne are particularly forgiving because you can bulk the pan with chopped carrots, peppers, courgette and tinned tomatoes, dropping the syn-per-spoonful even further.

Worth flagging: Colmans English mustard, French mustard and the squeezy yellow mustard are completely free on Slimming World, so do not confuse the syn-bearing sauce sachets with the condiments. Where members occasionally come unstuck is with the cheese-heavy sachets — Cauliflower Cheese and Macaroni Cheese mixes need real cheese added, so the finished dish carries the syns of that cheese on top of the packet itself.

Read the back of the sachet, weigh the milk and cheese honestly, and these mixes remain a cheap, low-syn route to comfort food.

Per serving

Colmans Sauce Mixes — syn values

Portion Syns kcal
Per serving (1/4 sachet made up) 1.75 50
1/2 sachet made up 3.5 100
Full sachet made up (serves 4) 7 200
1 tsp dry powder (approx 3g) 0.5 11
1 tbsp dry powder (approx 9g) 1.5 33
Yellow mustard (1 tsp) 0 4
Syn values are based on Slimming World 2026 guidance. Always double-check with your group or app.

Numbers at a glance

Quick auto-calculated stats for Colmans Sauce Mixes.

12%
of a 15-syn day
based on standard daily allowance
29kcal / syn
calories per syn
the lower, the more 'value' your syns get
6
portion sizes covered
from snack to full serving
0syns
cheapest portionat Yellow mustard (1 tsp)
smallest serving

Brand breakdown

Popular supermarket and branded products, with the portion-level syn count.

Brand Product Portion Syns kcal
Colmans Chicken Chasseur Sauce Mix 1/4 sachet made up 1.5 45
Colmans Beef Stroganoff Sauce Mix 1/4 sachet made up 1.75 50
Colmans Shepherd's Pie Mix 1/4 sachet made up 1.5 45
Colmans Chilli Con Carne Mix 1/4 sachet made up 1.5 45
Colmans Parsley Sauce Mix (made with skimmed milk) 1/4 sachet made up 2 55
Colmans Cheese Sauce Mix (made with skimmed milk) 1/4 sachet made up 2.5 70
Colmans Cauliflower Cheese Mix (dry sachet only) 1/4 sachet dry 1.75 50
Colmans Original English Mustard 1 tsp 0 4

Lower-syn alternatives

Swaps that keep the feel of the original without the syn hit.

Homemade tomato-based sauce

Free

Making a sauce from tinned tomatoes, onions, garlic, herbs and stock is completely Free and takes about the same time as whisking up a sachet. You can add smoked paprika, cumin or mixed herbs to replicate many Colmans flavour profiles without spending the 1.5 to 2 syns per serving.

Quark-based white sauce

Free

Warming quark gently with a splash of stock and mustard creates a creamy white sauce for zero syns, compared to 2 to 2.5 syns per serving for Colmans Parsley or Cheese Sauce. Add your HExA cheese on top for a properly cheesy finish.

FAQs

How many syns in Colmans sauce mix?

A quarter sachet serving of most Colmans sauce mixes comes in at around 1.5 to 2 syns when made up. The full sachet (serves 4) is about 7 syns total. Cheese and parsley sauces sit slightly higher at 2 to 2.5 syns per serving. Colmans English mustard and yellow mustard are completely free at 0 syns.

Is Colmans mustard free on Slimming World?

Yes, Colmans English mustard, French mustard and the squeezy yellow mustard are all completely free on Slimming World at 0 syns per teaspoon. Do not confuse these free condiments with the Colmans sauce sachets (Cheese Sauce, Parsley Sauce, etc.) which do carry syns.

Can you use Colmans sauce mixes on Slimming World?

Yes, they are a useful low-syn shortcut. A serving of Chicken Chasseur is about 1.5 syns, making it a great way to transform a plain chicken breast. Make the sauce with water rather than milk to keep syns down, then stir in HExA skimmed milk at the end for creaminess. Bulk out with Speed vegetables to stretch even further.

Which Colmans sauce is lowest in syns?

Chicken Chasseur, Shepherd's Pie and Chilli Con Carne mixes are among the lowest at around 1.5 syns per quarter-sachet serving. The cheese-based sauces like Cauliflower Cheese and Macaroni Cheese are higher because they require added cheese on top of the sachet's own 1.75 to 2.5 syns.

Lower-syn sauce alternatives

Food Portion Syns vs current
Fish Sauce 1 tsp (5ml) FREE same
Soy Sauce 1 tsp (5ml) FREE same
Stock Cube 1 cube (Knorr / Oxo) FREE same
Tomato Puree 1 tbsp (15g) FREE same
Wine Vinegar 1 tbsp (15ml) FREE same

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