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Syns & Slimming World

How Many Syns in Mint Sauce?

By Jenny Updated

Mint sauce is one of those quietly brilliant condiments that has earned its place on the Slimming World table, particularly for anyone who loves a traditional Sunday roast. Made from finely chopped fresh mint suspended in a sharp, sweetened vinegar base, it delivers a punchy burst of flavour without weighing down your plate with unnecessary calories. For members following the plan, the syn cost is genuinely negligible, which means you can drizzle it generously over your roast lamb, new potatoes, or even a pile of steamed peas without doing any damage to your daily allowance.

What makes mint sauce such a useful addition to a slimmer's kitchen is its ability to transform plain Speed Foods into something memorable. A bowl of crushed minted peas alongside grilled lamb steak feels like a proper restaurant dinner rather than a diet meal, and a spoonful stirred through natural yoghurt creates a tangy dip for crudités that costs you almost nothing. The vinegar base also means the sauce keeps for months in the fridge, so a single jar stretches across countless meals.

Most shop-bought versions sit at around half a syn per tablespoon, which is remarkable for something with such intense flavour. Colman's, Tesco, Sainsbury's and Baxters all produce versions that fall within similar syn values, so brand loyalty rarely matters here. The traditional Colman's jar remains the most recognisable, with its distinctive sweet-sharp balance.

If you fancy making your own, a handful of fresh mint, two tablespoons of white wine vinegar, a teaspoon of sweetener and a splash of boiling water blitzed together gives you a Free version that tastes brighter than anything you can buy. Either way, mint sauce is the sort of small kitchen hero that proves losing weight never has to mean losing flavour.

Per serving

Mint Sauce — syn values

Portion Syns kcal
1 tsp (10g) 0.5 8
1 tbsp (15g) 0.5 12
2 tbsp (30g) 1 24
3 tbsp (45g) 1.5 36
Small jar (165g) 6.5 132
Standard jar (250g) 10 200
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 Mint Sauce.

5.0syns / 100g
Syns per 100g
useful for comparing brands
3%
of a 15-syn day
based on standard daily allowance
16kcal / syn
calories per syn
the lower, the more 'value' your syns get
6
portion sizes covered
from snack to full serving
0.5syns
cheapest portionat 1 tsp (10g)
smallest serving

Brand breakdown

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

Brand Product Portion Syns kcal
Colman's Classic Mint Sauce 1 tbsp (15g) 0.5 13
Tesco Mint Sauce 1 tbsp (15g) 0.5 11
Sainsbury's Mint Sauce 1 tbsp (15g) 0.5 12
Baxters Traditional Mint Sauce 1 tbsp (15g) 0.5 14
ASDA Mint Sauce 1 tbsp (15g) 0.5 10
Morrisons Mint Sauce 1 tbsp (15g) 0.5 12
Waitrose Essential Mint Sauce 1 tbsp (15g) 0.5 13

Lower-syn alternatives

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

Homemade mint sauce (sugar-free)

Free

Making your own mint sauce with fresh mint, vinegar and sweetener makes it completely Free. It takes two minutes, tastes brighter than jar versions, and saves the 0.5 Syns per tablespoon. Keep a batch in the fridge for the week.

Fresh chopped mint in yogurt

Free

Stirring chopped fresh mint through fat-free natural yogurt creates a Free raita-style sauce. It works with lamb, chicken and falafel. The yogurt adds creaminess that plain mint sauce does not have, and the whole thing is Free.

FAQs

How many syns in mint sauce?

Mint sauce is just 0.5 Syns per tablespoon (15g), making it one of the lowest-Syn condiments available. A teaspoon is also 0.5 Syns, and even two tablespoons is only 1 Syn. You can drizzle it generously over lamb or vegetables without doing any real damage to your daily allowance.

Is mint sauce free on Slimming World?

Mint sauce is not technically Free, but at 0.5 Syns per tablespoon it is so low that many members barely notice it on their tracker. Homemade mint sauce made with fresh mint, vinegar, boiling water and sweetener is genuinely Free. Most shop-bought versions from Colman's, Tesco and Sainsbury's are all 0.5 Syns per tablespoon.

Can you have mint sauce on Slimming World?

Absolutely. At 0.5 Syns per tablespoon, mint sauce is one of the most plan-friendly condiments. It transforms roast lamb, peas, new potatoes and salads for virtually nothing. A whole tablespoon costs less than half a Syn, so there is no reason to skip it.

How do you make free mint sauce for Slimming World?

Chop a handful of fresh mint finely, add two tablespoons of white wine vinegar, a teaspoon of sweetener and a splash of boiling water. Stir together and leave to cool. This homemade version is completely Free because it contains no sugar, unlike shop-bought versions at 0.5 Syns per tablespoon.

Lower-syn sauce alternatives

Food Portion Syns vs current
Fish Sauce 1 tsp (5ml) FREE −0.5 syns
Soy Sauce 1 tsp (5ml) FREE −0.5 syns
Stock Cube 1 cube (Knorr / Oxo) FREE −0.5 syns
Tomato Puree 1 tbsp (15g) FREE −0.5 syns
Wine Vinegar 1 tbsp (15ml) FREE −0.5 syns

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