Southern · Authentic-ish Southern
She-Crab Soup

264 kcal a serving, against 598 for the traditional version. That is 334 kcal off, or 56%, with 28.6g of protein. Serves 4. 50 minutes.
What the traditional version is
This is a big, velvety soup: sweat onions and celery in 60g of butter, stir in 45g plain flour, then splash in 800ml fish stock and bubble away. Whisk in 350ml double cream and 150ml whole milk, bring it gently to a near-simmer, then fold in 300g white crabmeat and as much crab roe as you can find (usually 30g if you're lucky).
What changed, and what each change costs
Double cream and whole milk swapped for evaporated skimmed milk
Evaporated skimmed milk is the only dairy standing between you and a pot of dishwater. It's not creamy, but it at least acts as a body double, with a fraction of the fat. You'll still need some thickness, but not the sort that puts you into a food coma.
What it costs you. Don't expect velvet. The soup turns a little grainy, and the crab comes through sharp. You get the flavour of crab, but not the round edges.
60g butter reduced to 12g, topped up with a spoon of olive oil
Cutting down the butter means you still get some richness without turning your arteries into old plumbing. A dash of olive oil helps sweat the veg without risking a catch in the pan.
What it costs you. With most of the butter gone, the soup's gone from plush dining room to the weekday table. You can taste the difference, but not enough to bin the whole project.
Plain flour swapped for a third of the amount in cornflour
Cornflour does the thickening job at much lower dose, which keeps the texture from turning gummy or raw. It's a bit cheaty, but in this crowd you're not fooling anyone anyway.
What it costs you. It isn't the silken glide you get from a proper roux - this is more one-note, but it does stop the soup sinking like a stone after three spoons.
Crab roe dropped altogether
Unless you know a crabber with a sideline, shop-bought crab roe is as rare as a polite Twitter thread. Dropping it slashes the fat and cholesterol, not to mention the price. Don't compensate with fake roe - it's never worth it.
What it costs you. You lose the signature colour and a chunk of the depth. Without roe, this is just crab soup, no 'she' about it, and I won't pretend otherwise.
Extra crabmeat for a little whey protein
Boosting protein is the only way to keep the soup from becoming crab-flavoured milk. A small (and I do mean small) scoop of whey protein does it with almost no flavour penalty, and at least makes the bowl worth eating for lunch.
What it costs you. A purist would call this criminal. The texture is a bit odd, and if you skimp on stirring you'll get odd little flecks, but it lets you call this soup rather than warm milk.
The numbers
| Per serving | Traditional | Lightened |
|---|---|---|
| Calories | 598 | 264 |
| Protein | 24.8g | 28.6g |
| Fat | 47.4g | 7.4g |
| Saturated fat | 29g | 2.6g |
| Carbohydrate | 16.9g | 17.6g |
| Protein per 100 kcal | 4.1g | 10.8g |
Every figure is computed from the recipe's own weighed ingredient list against public food composition databases. The appendix in Authentic-ish Southern prints the exact database row used for each ingredient, so any number here can be checked.
Allergens. celery, crustaceans, fish, gluten, milk, sulphites.
The method is in the book
This is not Charleston level, and you'll know it from the first spoon. Without the double cream and roe it's sharper, less luxurious and not nearly as moreish - but it does still taste of crab. The cheap seats are the first to complain, but if you want to get your crab soup fix on a Tuesday without clearing your diary to snooze off the aftermath, this version will do. The protein's high enough to call it lunch, but if it's a special occasion, you know what to do: bring back the cream and roe, and don't tell anyone you ever tried this.
The quantities and the method for this dish are in Authentic-ish Southern, along with 50 more. It is not out yet. The swap kit is free in the meantime.