Adds a deep, savoury, slightly briny richness that regular stock cubes can't replicate
Essential in authentic jollof, egusi, pepper soup, and okra stew
Works as a seasoning stock base — dissolves easily into hot liquids
A flavour revelation for cooks discovering bold seafood cooking for the first time
Description
Costack Seafood Stock Powder is the concentrated shellfish umami base for risotto, paella, fish pie, gumbo, and seafood soups. A teaspoon transforms the dish. UK home cooks use it to anchor seafood cooking with the deep, savoury, slightly briny depth that professional kitchens rely on. Contains shellfish (crayfish). UK seasoning brand. Free UK delivery on orders over £35.
Concentrated shellfish flavour for risotto, paella, fish pie, and seafood soups.
A teaspoon transforms the dish. Costack Seafood Stock Powder delivers the deep, savoury, slightly briny umami that professional kitchens use to anchor seafood cooking.
Why this beats stock cubes
Real shellfish flavour: the briny umami you actually want.
Goes into seafood risotto, paella, fish pie, chowders, gumbo, soups, stews, jollof, hot broth.
1 tbsp per pot of soup or risotto.
Pairs with every Costack savoury blend.
How to use it
Seafood Risotto: 1 tbsp stirred in with the stock as the rice cooks. Restaurant-grade depth.
Paella: 1 tsp at the start, with the stock and saffron.
Fish Pie filling: half a tbsp into the bechamel for an instant lift.
Egusi Soup: 2 tbsp into the simmering soup with leafy greens.
Hot Broth boost: 1 tbsp added with Costack Aromatic Hot Broth Spice.
FAQ
Allergens? Contains shellfish (crayfish). Not suitable for shellfish allergy.
Is it salty? Lightly. Adjust salt elsewhere.
Does it taste fishy? No. Briny umami, not fishy.
Shipping Information
Shipping calculated at Checkout. Free UK Shipping for Orders above £35
Additional Information
200 grams
Nutritional Information
Salt, flavour enhancers (e635, e621), sugar, starch, dried SHRIMP powder, glucose, maltodextrin, rice, garlic, ginger, disodium succinate, white pepper, paprika extract, shrimp flavour. Allergy Advice: for allergens, see ingredients in BOLD. May contain traces of Shrimp, Soya and Milk
Most Costack blends are flavour-forward, not fire-forward. All Purpose, Complete, Chicken & Turkey are family-friendly. Cameroon Pepper and Suya Spice carry real heat. Each product page lists the heat level so there are no surprises.
Will this work for everyday family cooking?
Yes. Roasted veg, rice, soups, stews, grilled chicken, pasta sauces. No special techniques needed. Just season generously and cook as normal.
How long does delivery take?
We deliver across the UK within 2–3 working days via Royal Mail. You’ll receive tracking details once your order is dispatched.
What does shipping cost?
Free UK delivery on orders over £35. Below £35, standard UK delivery is from £2.70 via Royal Mail (2–3 working days).
Is it gluten free?
Yes. Costack blends are gluten-free and contain no artificial colouring or flavourings. Full ingredient + allergen info is on every product label.
How long does it last?
Costack blends typically last 18–24 months from production. Sealed for lasting freshness. Store in a cool, dry place away from direct sunlight.
Is checkout secure?
Yes. Secure encrypted checkout. Pay with Apple Pay, Google Pay, Shop Pay, Klarna, Clearpay, PayPal, or any major card.
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