British · Authentic-ish British
Cullen skink
245 kcal a serving, against 400 for the traditional version. That is 155 kcal off, or 39%, with 27.7g of protein. Serves 4. 45 minutes.
What the traditional version is
Classic Cullen skink is a thick, warming soup from the north of Scotland. The foundation is undyed smoked haddock, poached gently in milk, with plenty of potato for body. Onion adds a bit of sweetness, and a generous pour of double cream at the end makes it properly rich and slightly silky. Served with a hunk of good bread, ideally near a peat fire.
What changed, and what each change costs
Double cream to extra poached potato and skimmed milk
Cream makes a glorious soup, but it's doing most of the heavy lifting on the calorie front. If you mash some boiled potato and let that break down in skimmed milk, you get a decent thickness. It's not silky, but it'll stand a spoon upright.
What it costs you. You lose the smooth, luxurious finish only cream brings. The soup is chunkier and not as rich. It's more honest about what it is - a hearty fish soup, not a Scottish chowder in a tuxedo.
Whole milk for skimmed milk
This one's straightforward: whole milk has double the calories and almost none of the protein advantage. Skimmed milk still gives you a dairy backbone, but the broth is lighter and you can taste the haddock more clearly.
What it costs you. Less velvety. If your idea of a soup is a cup of hot silk, you'll detect the swap straight away. It's more like a proper brothy soup now than a pudding.
Add extra white fish to replace protein lost with the cream
Drop the cream and you drop calories, but you're also losing some heft. Adding white fish (cod or pollock) doesn't change the flavour much but keeps the soup satisfying.
What it costs you. Nobody's grandmother in Cullen is putting cod in her skink, but you'll forgive me when you realise it still tastes of smoked haddock and does the same job.
Butter out entirely
The butter is for sweating your onion. If you just use a splash of milk and cook it low, the onion softens without the richness. Not as sweet, but you're not drinking onion gravy.
What it costs you. A little less depth. The onion isn't quite as mellow, but the soup doesn't miss it much under all the fish.
The numbers
| Per serving | Traditional | Lightened |
|---|---|---|
| Calories | 400 | 245 |
| Protein | 22.9g | 27.7g |
| Fat | 22.8g | 0.9g |
| Saturated fat | 14g | 0.2g |
| Carbohydrate | 26.4g | 30.8g |
| Protein per 100 kcal | 5.7g | 11.3g |
Every figure is computed from the recipe's own weighed ingredient list against public food composition databases. The appendix in Authentic-ish British prints the exact database row used for each ingredient, so any number here can be checked.
Allergens. fish, gluten, milk.
The method is in the book
Cullen skink, done properly, is a hug in a bowl. My version is lighter on the waistline but doesn't quite hit the same level of luxury. The missing cream is the second thing you notice - the first is that it still tastes deeply of smoke and sea. The mashed potato trick is honestly clever, but if you serve it next to the traditional version, you'll know which one's gone posher. The real win is you can go back for seconds without feeling you've eaten the North Sea. It's properly filling, high in protein, and if that means you're a little less smug about the soup's silkiness, I can live with that.
The quantities and the method for this dish are in Authentic-ish British, along with 57 more. It is not out yet. The swap kit is free in the meantime.