Skip to content
Syns & Slimming World

How Many Syns in Chocolate Eclair?

By Jenny Updated

Chocolate eclairs are one of those bakery indulgences that look deceptively delicate but pack a substantial punch when it comes to Syns. The classic eclair is built from three rich components: choux pastry (made with butter, eggs, and flour), a generous piping of sweetened whipped cream or crème pâtissière, and a glossy chocolate fondant or ganache topping. None of these elements are friendly to Slimming World's Food Optimising plan, which is why a single shop-bought eclair typically lands at around 9 Syns — roughly a third of a generous daily allowance gone in three or four bites.

The good news is that eclairs are easy to plan for if you genuinely fancy one. They are clearly a treat food, so there is no point pretending otherwise. Save your Syns for the occasion, enjoy it slowly, and pair it with a Speed-heavy main meal so the rest of your day still feels abundant. Many members find that one proper bakery eclair satisfies a craving far better than nibbling at lower-Syn alternatives all afternoon.

Portion size matters enormously here. A mini eclair from a party platter might come in at 3 to 4 Syns, while a large patisserie-style eclair from somewhere like a French bakery can easily climb to 12 Syns or higher. Always check the back of the packet for supermarket versions, because the cream-to-pastry-to-chocolate ratio varies wildly between brands.

If you bake your own using lower-fat alternatives — quark-based fillings, sugar-free chocolate topping, and a lighter choux — you can bring the count down considerably, but a homemade eclair is still very much a Syn-counted treat rather than a free food. Plan it, enjoy it, and move on without guilt.

Per serving

Chocolate Eclair — syn values

Portion Syns kcal
1 mini eclair (20g) 3 65
1 small eclair (40g) 6 130
1 eclair (65g) 9 210
1 large patisserie eclair (90g) 13 290
Pack of 4 mini eclairs (80g) 12 260
2 standard eclairs (130g) 18 420
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 Chocolate Eclair.

15.0syns / 100g
Syns per 100g
useful for comparing brands
20%
of a 15-syn day
based on standard daily allowance
22kcal / syn
calories per syn
the lower, the more 'value' your syns get
6
portion sizes covered
from snack to full serving
3syns
cheapest portionat 1 mini eclair (20g)
smallest serving

Brand breakdown

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

Brand Product Portion Syns kcal
Tesco Belgian Chocolate Eclairs 1 eclair (33g) 5 115
Sainsbury's Taste the Difference Chocolate Eclairs 1 eclair (40g) 7 150
M&S 6 Chocolate Mini Eclairs 1 mini (22g) 4 80
Asda 4 Chocolate Eclairs 1 eclair (45g) 7 155
Waitrose 4 Belgian Chocolate Eclairs 1 eclair (50g) 8 175
Morrisons The Best Chocolate Eclairs 1 eclair (48g) 8 165
Aldi Specially Selected Belgian Chocolate Eclairs 1 eclair (40g) 7 145
Lidl Deluxe Chocolate Mini Eclairs 1 mini (25g) 4 90

Lower-syn treat alternatives

Food Portion Syns vs current
Maltesers 1 Malteser 0.5 −2.5 syns
Lotus Biscoff Biscuit 1 biscuit (8g) 2 −1 syns

Newsletter

Kitchen-tested, inbox-ready.

One weekly email with new syn values, recipes, and honest food reviews. No spam, unsubscribe any time.

Slimming World tools

Free tools to plan, track, and compare your day on plan.