Starbucks All Butter Belgian Dark Chocolate Chunk Cookie contains 498 kcal per cookie — 25% of the adult 2,000 kcal daily reference intake, 32% for a child aged 7 to 10, and 39% for a child aged 4 to 6. At 498 kcal it is the highest calorie single food item across the entire Starbucks range — above the Lemon Tart at 566 kcal only when the tart is considered, though the cookie exceeds all other sweet bakery items. The all-butter recipe with high Belgian dark chocolate content and a generous portion size drives the calorie count.

Per cookie: 498 kcal, 26g fat (16g saturated), 61g carbohydrate (32g sugar), 5.8g protein, 0.55g salt. The saturated fat at 16g is 80% of the adult daily guideline of 20g. The sugar at 32g is 107% of the adult daily free sugar limit of 30g. The salt at 0.55g is 9% of the adult daily limit of 6g.

Starbucks All Butter Belgian Dark Chocolate Chunk Cookie contains 32g of sugar per cookie — 8 teaspoons and 107% of the adult daily free sugar limit of 30g. For a child aged 4 to 6, this represents 168% of their daily free sugar limit — nearly double their entire daily allowance from a single cookie. For a child aged 7 to 10, it is 133% of their 24g daily limit. The sugar comes from the brown sugar and golden caster sugar in the cookie dough — which together form the primary flavour and texture base — and the Belgian dark chocolate chunks which contain sugar in the chocolate recipe. The NHS free sugar limit is 30g per day for adults, 24g for children aged 7 to 10, and 19g for children aged 4 to 6.

Starbucks All Butter Belgian Dark Chocolate Chunk Cookie contains 0.55g of salt per cookie — 9% of the adult daily limit of 6g and 18% of the daily limit for a child aged 4 to 6. The salt comes from the salted butter used in the all-butter recipe. Butter cookies typically use salted butter to enhance the sweetness and round out the flavour. At 0.55g it is slightly higher in salt than most other Starbucks sweet items but not a significant nutritional concern relative to the sugar and calorie content.

Starbucks All Butter Belgian Dark Chocolate Chunk Cookie contains 16g of saturated fat per cookie — 80% of the adult daily guideline of 20g and 100% for a child aged 4 to 6. The saturated fat comes from two sources: the butter which makes up a significant proportion of the cookie dough by weight — all-butter cookies typically use 25-30% butter — and the cocoa butter in the Belgian dark chocolate chunks. Belgian dark chocolate is made with a higher cocoa butter content than standard dark chocolate, which contributes to both the richness and the saturated fat level.

Starbucks All Butter Belgian Dark Chocolate Chunk Cookie contains 5.8g of protein per cookie — 12% of the adult daily reference intake of 50g. The protein comes from the eggs in the cookie dough, the wheat flour and the milk solids in the chocolate. At 5.8g for 498 kcal the protein-to-calorie ratio is very low — among the lowest of any item in the Starbucks range — reflecting the high butter, sugar and chocolate content of an all-butter cookie recipe.

Yes. NOVA 4, ultra-processed. The Belgian dark chocolate chunks contain soya lecithin as an emulsifier and vanilla flavouring. The cookie dough contains raising agents — sodium bicarbonate and ammonium bicarbonate — as leavening agents, and vanilla flavouring. These industrial additives in the chocolate and dough components determine the NOVA 4 classification, despite the core ingredients — butter, flour, eggs and sugar — being standard baking ingredients that would be used in a home cookie recipe.

Starbucks All Butter Belgian Dark Chocolate Chunk Cookie contains wheat/gluten, milk, egg and soya as declared allergens — four allergens. The wheat comes from the wheat flour in the cookie dough. The milk comes from the butter and the milk solids in the Belgian dark chocolate. The egg comes from the whole eggs in the dough recipe. The soya comes from the soya lecithin used as an emulsifier in the Belgian dark chocolate. It does not contain peanuts, tree nuts, fish, shellfish, celery, mustard, sesame, lupin or molluscs. The absence of tree nuts is notable given the premium chocolate content — Belgian dark chocolate does not inherently contain nuts. Always tell your barista if you have a severe allergy before ordering.

Yes. Starbucks All Butter Belgian Dark Chocolate Chunk Cookie is suitable for vegetarians. It contains no meat or fish. It is not suitable for vegans as it contains butter, eggs and milk in the chocolate. It is also not suitable for those with wheat, milk, egg or soya allergies. Unlike the Triple Chocolate Brownie and White Chocolate Cherry Blondie, it does not contain tree nuts — making it accessible to a slightly wider audience on allergen grounds.

At 32g of sugar — 168% of the daily free sugar limit for a child aged 4 to 6 — and 16g saturated fat equalling 100% of their daily guideline, the All Butter Belgian Dark Chocolate Chunk Cookie is not appropriate for children of any age as a snack or treat. At 498 kcal it represents 39% of the daily calorie need for a child aged 4 to 6. The four declared allergens further limit its suitability. It is one of the most nutritionally extreme items in the Starbucks sweet range for any age group.

Belgian dark chocolate is made with a higher minimum cocoa butter content than standard dark chocolate — Belgian chocolate regulations require a minimum of 35% cocoa solids. Higher cocoa butter content produces a smoother melt, richer flavour and more glossy appearance than cheaper chocolate alternatives. Nutritionally, the higher cocoa butter content contributes more saturated fat per gram than lower quality dark chocolate. In the context of the cookie, the Belgian chocolate chunks are the premium ingredient that distinguishes it from a standard chocolate chip cookie — and account for a meaningful portion of the 16g saturated fat total.

At 32g of sugar the cookie already exceeds the adult daily free sugar limit of 30g before any drink is added. Any sweetened drink pushes the total substantially further — a Caramel Macchiato adds 23g taking the total to 55g, a Chai Tea Latte adds 28g taking the total to 60g, and a Caramel Frappuccino adds 48g taking the total to 80g. Only an unsweetened Americano, flat white or herbal tea at zero sugar avoids adding further sugar to a daily total already over the limit. The cookie is one of the few food items at Starbucks where any sweetened drink alongside it is nutritionally unjustifiable on sugar grounds.

The Cookie contains 498 kcal versus 418 kcal in the Triple Chocolate Brownie — 80 more calories. Sugar is lower at 32g versus 33g — almost identical. Saturated fat is the same at 16g. The Cookie has four allergens versus five in the Brownie — no tree nuts in the Cookie. On carbohydrate the Cookie is higher at 61g versus 38g — more starch and sugar from the dough base. For lower calories the Brownie is better; for no tree nut allergen the Cookie is more accessible; on sugar and saturated fat they are essentially equivalent.

Starbucks All Butter Belgian Dark Chocolate Chunk Cookie is the highest calorie sweet bakery item at Starbucks at 498 kcal — second only to the Lemon Tart at 566 kcal across the entire food range. At 32g sugar it exceeds the adult daily free sugar limit and at 16g saturated fat it uses 80% of the adult daily guideline. It has four declared allergens and no tree nuts, making it slightly more accessible than the Triple Chocolate Brownie on allergen grounds. It is suitable for vegetarians but not vegans. As an occasional indulgence for adults without allergen concerns who enjoy a premium butter cookie with dark chocolate, it is the only option at Starbucks — but it is nutritionally one of the most demanding sweet items on the menu.