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Chocolate Éclair with Custard

Chocolate Éclair with Custard

Franse chocolade eclair met banketbakkersroomSweets & desserts

Quick answer

A medium portion of Chocolate Éclair with Custard (80 g) contains 210 kcal, with 18.4 g of net carbohydrates and 4.8 g of protein. Its glycemic index is 65 (Medium) for how fast it raises blood sugar, while its glycemic load per portion is 12 (Medium) for its actual effect.

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  • Carbs19.2 g36.4%
  • Protein4.8 g9.1%
  • Fat12.8 g54.5%
  • Fibre0.8 g 

Percentages of total energy (calories)

Glycemic index65MediumClinically reviewed estimate
Glycemic load12Mediumper 80 g portion

An icon of fine French pâtisserie that wins hearts with its lightness: crisp, carefully baked choux pastry filled with velvety custard cream and topped with a rich layer of dark or milk chocolate ganache. The éclair offers a balanced mix of flavours: the fat from butter and eggs and the protein in the custard slow the absorption of its sugars compared with simple sugary sweets, making it a treat you can enjoy mindfully and in moderation on special occasions.

💡 Smart Nutritional Guidance

Consumption advice

Enjoy half or a single éclair as dessert after a complete main meal rich in fibre and leafy greens, and avoid eating it as a light breakfast or on an empty stomach.

Best preparation methods

You can make it at home with low-fat milk and low-calorie natural sweeteners in the custard, and choose dark chocolate (70% or more) for the topping to add antioxidants and cut added sugar.

Important Nutritional Note

Because it combines sugars with saturated fat, people with insulin resistance are advised to check their blood glucose two hours after eating it to see how their body responds.

Nutrition facts

NutrientPer 100 gPer typical portion (80 g)
Calories262 kcal209.6 kcal
Protein6 g4.8 g
Carbohydrate24 g19.2 g
Available carbohydrate23 g18.4 g
Fat16 g12.8 g
Dietary fibre1 g0.8 g

The typical portion is approximate, for comparison purposes.

Comparison & smarter alternatives

Among the foods in Sweets & desserts with a glycemic index (54), it ranks 32 (lowest first).

Smart alternatives from the same family:

Frequently asked questions

Does a chocolate éclair fit a weight-loss plan?

It can fit into your eating plan if you count its calories (about 210 kcal per éclair), but it is best kept as an occasional treat while staying within your daily calorie deficit.

How does a chocolate éclair affect blood sugar?

Thanks to the fat and protein in the custard, blood sugar rises more gradually than with liquid sweets, but its medium glycemic load (12) still calls for careful portion control.

How is a chocolate éclair different from other rich pastries?

Choux pastry rises from steam and eggs and is hollow and light compared with fried doughs such as doughnuts, so its carbohydrate density is relatively lower.

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References & Scientific Sources

  1. The glycemic index of this food is a clinically reviewed estimate by the WiBo Health medical team, not a laboratory measurement from the International GI Tables (Atkinson 2021). GI bands (low ≤ 55 · medium 56–69 · high ≥ 70) follow: ISO 26642:2010. Food products — Determination of the glycaemic index (GI) and recommendation for food classification. International Organization for Standardization; 2010. www.iso.org/standard/43633.html
  2. Definition of available carbohydrate and glycemic load: FAO/WHO. Carbohydrates in human nutrition: report of a joint FAO/WHO expert consultation. FAO Food and Nutrition Paper 66. Rome; 1998. www.fao.org/4/w8079e/w8079e00.htm

Methodology & details →

Reviewed by the WiBo Health medical team · Last reviewed 13 October 2026

Disclaimer: This guidance is for nutritional lifestyle orientation and does not constitute a diagnostic medical device under EU Regulation MDR 2017/745.