Traditional Mushy Peas Recipe

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Traditional Mushy Peas Recipe

A British chip-shop classic, this traditional mushy peas recipe uses dried marrowfat peas and a touch of bicarbonate of soda to create the bright-green, silky side dish beloved with fish and chips.

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Traditional mushy peas recipe: bright green mushy peas in a rustic bowl topped with melting butter and chopped mint
Prep: 12 hrs (including soak) Cook: 45–60 mins Total: 12–13 hrs Yield: 4 servings Cuisine: British Category: Side Dish

Ingredients

  • 400g dried marrowfat peas
  • 1/2 tsp baking soda (bicarbonate of soda)
  • Salt, to taste
  • 1–2 tbsp butter or olive oil
  • 1 pinch sugar (optional, to taste)
  • Fresh mint, chopped (optional)
  • Lemon wedges, to serve (optional)

Equipment

  • Large bowl for soaking
  • Sieve/colander
  • Large saucepan
  • Wooden spoon
  • Blender or potato masher

Instructions

  1. Place the dried marrowfat peas in a large bowl and cover with plenty of cold water. Add a pinch of baking soda (bicarbonate of soda) and leave to soak overnight (8–12 hours).
  2. Drain and rinse the peas thoroughly in a sieve to remove any residue from soaking.
  3. Transfer the peas to a large saucepan and cover with fresh cold water by about 2–3cm. Bring to a gentle simmer over low heat. Skim any foam from the surface. Simmer gently until the peas are very soft, about 45–60 minutes (longer for older peas).
  4. Drain the peas, reserving a little of the cooking liquid. Return peas to the pan and mash with a potato masher or pulse briefly in a blender to your desired texture — traditional mushy peas are slightly chunky, but blend for a silkier result.
  5. Season with salt, stir in a knob of butter or a drizzle of olive oil, and add a pinch of sugar or chopped mint if using. Adjust the thickness with reserved cooking liquid until you reach the perfect consistency.
  6. Reheat gently before serving. Serve hot with a lemon wedge and a sprinkle of chopped mint or cracked black pepper if desired.

Nutrition estimate (per serving)

Calories: ~160 kcal • Protein: 9g • Carbs: 24g • Fat: 4g • Fibre: 7g

Pro tips: Use dried marrowfat peas for the authentic texture; frozen garden peas are a quick alternative (shorter cook). Avoid vigorous boiling to prevent grainy peas. For extra silkiness, blend with a little cream or butter. Store in the fridge for 3–4 days or freeze up to 3 months.

Serving ideas

  • Classic with fish and chips
  • Mushy pea fritters or patties
  • On buttered toast or with minted new potatoes
  • Alongside shepherd’s pie or hot savory pies

Frequently asked questions

How long should I soak the peas?

Soak dried marrowfat peas for 8–12 hours or overnight. This softens them and shortens cooking time.

Can I use frozen peas instead?

Yes — frozen garden peas are a quick alternative. Cook for a few minutes until tender and mash; texture will be smoother and slightly sweeter than marrowfat peas.

Why add baking soda?

A pinch of baking soda during soaking helps soften the pea skins and brings out the bright green color, giving the traditional mushy texture.

How do I fix mushy peas that are too thick or too thin?

Too thick: stir in reserved cooking liquid, a splash of water, or a little milk/cream. Too thin: simmer gently, uncovered, until reduced to the desired thickness.

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For background on marrowfat peas and traditional British preparations, see BBC Food.