Syns & Slimming World

How Many Syns in Apple Crumble?

By Jenny Updated 14 May 2026

Apple crumble is one of Britain's most beloved puddings, and for good reason — the combination of sweet, softened apple beneath a golden, buttery topping is the very definition of comfort food. On Slimming World, it sits firmly in Syn territory rather than the Free Food or Healthy Extra columns, primarily because the crumble topping is made from butter, sugar, and flour — all of which are Synned ingredients. The apple filling itself, however, counts as a Free Food, so every warm, fragrant spoonful isn't entirely off plan.

Whether you're making apple crumble from scratch or reaching for a supermarket version, understanding the Syn value helps you enjoy it without derailing your weight-loss journey. A standard home-made portion of around 200g typically carries roughly 14 Syns, with the vast majority concentrated in the crumble layer. A smaller, more modest portion of about 130g brings that figure down to approximately 9 Syns — still a meaningful Syn spend, but one that many members happily budget for on a cosy Sunday evening.

The clever trick many Slimming World members swear by is lightening the topping by swapping butter for a reduced-fat spread, cutting back the sugar, and boosting the oat content. Porridge oats can contribute towards your Healthy Extra B allowance if weighed carefully, which can bring the overall Syn count down considerably. Some members skip the butter entirely and mix their oats with a little sweetener and a splash of vanilla extract before baking — the result is surprisingly satisfying. Others top their stewed Bramley apples with a crushed Weetabix or two as a makeshift crumble, making brilliant use of their HEB allowance.

Shop-bought versions vary quite widely, so it's always worth checking the calorie count on the packet and dividing by 20 for a dependable estimate. Ready-made versions from Tesco, Sainsbury's, and Marks & Spencer typically range from 14 to 18 Syns per serving. With a little planning, apple crumble can absolutely have a regular place in your Slimming World life — it's all about balance.

Per serving

Apple Crumble — syn values

Portion	Syns	kcal
Child/taste portion (80g)	5.5	140
Small portion (130g)	9	228
Standard portion (200g)	14	350
Large portion (250g)	17.5	438
Extra large/pub portion (300g)	21	525
Crumble topping only (50g)	6	150

Numbers at a glance

Quick auto-calculated stats for Apple Crumble.

6.9syns / 100g

Syns per 100g

useful for comparing brands

37%

of a 15-syn day

based on standard daily allowance

25kcal / syn

calories per syn

the lower, the more 'value' your syns get

portion sizes covered

from snack to full serving

5.5syns

cheapest portionat Child/taste portion (80g)

smallest serving

Brand breakdown

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

Brand	Product	Portion	Syns	kcal
Tesco	Apple Crumble	1 serving (200g)	16	320
Asda	Apple Crumble	1 serving (200g)	15.5	310
Sainsbury's	Apple Crumble	1 serving (200g)	16.5	330
Marks & Spencer	Apple Crumble	1 serving (200g)	18	355
Waitrose	Apple Crumble	1 serving (200g)	17	340
Iceland	Apple Crumble Dessert	1 pot (200g)	14.5	290

Lower-syn alternatives

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

Stewed apples with crushed Weetabix

Free if using HExB

Stewed Bramley apples are Free, and two Weetabix from your Healthy Extra B crushed over the top give you crumble texture for zero syns. Add a pinch of cinnamon and a drizzle of sweetener for a proper pudding that costs nothing from your daily allowance.

Baked apple with cinnamon

Free

Core a cooking apple, stuff with cinnamon and sweetener, then bake until soft and collapsing. You get the warm, comforting apple flavour of a crumble without any of the topping syns. Serve with a dollop of fat-free vanilla yoghurt for added indulgence.

Apple and oat crumble pots (light recipe)

3-4 syns per pot

Make individual ramekins using Free stewed apple, a tablespoon of oats and a teaspoon of low-fat spread per pot. Bake until golden. Each pot comes in at roughly 3 to 4 syns, which is a fraction of the 14 syns in a traditional serving.

FAQs

How many syns in apple crumble?

A standard 200g portion of homemade apple crumble is around 14 syns, with most of the cost sitting in the buttery crumble topping rather than the fruit. A smaller 130g portion brings that down to about 9 syns, which is more manageable as an occasional Sunday treat. Shop-bought versions range from 14.5 to 18 syns per serving depending on the brand.

Is apple crumble free on Slimming World?

No, apple crumble is not Free. While the stewed apple filling counts as a Free Food, the crumble topping made from butter, flour and sugar must be synned. A 200g portion is approximately 14 syns. You can reduce the syn cost significantly by using a lighter topping made with porridge oats, sweetener and a little low-fat spread instead of traditional butter and sugar.

Can you make a low syn apple crumble?

Yes, and it is well worth the effort. Swap butter for a small amount of low-fat spread, replace sugar with sweetener, and use porridge oats as your HExB to form the topping. Some members crush a couple of Weetabix over stewed apples for a makeshift crumble at minimal syns. The apple filling itself is Free, so focus your efforts on lightening the topping.

How many syns in shop bought apple crumble?

Supermarket apple crumbles typically range from 14.5 to 18 syns per 200g serving. Iceland sits at the lower end around 14.5 syns, while Marks and Spencer tends to be richer at around 18 syns. Always check the label and divide calories by 20 for a reliable estimate if the product is not listed in the Slimming World app.

Lower-syn treat alternatives

Food	Portion	Syns	vs current
Maltesers	1 Malteser	0.5	−5 syns
Lotus Biscoff Biscuit	1 biscuit (8g)	2	−3.5 syns
Lemon Sorbet	1 scoop (80g)	4	−1.5 syns
FAB Ice Lolly	1 bar (65ml)	4.5	−1 syns
Ice Cream	1 scoop vanilla (75g)	5	−0.5 syns