Mushy peas are a British chip shop staple: dried marrowfat peas soaked overnight, then simmered until they collapse into a thick, creamy, vibrant green purée. This version recreates that authentic taste at home with just a handful of pantry ingredients, and it pairs perfectly with fish and chips, pies, or simply on toast. The key is the overnight soak and a gentle simmer—no blending required, just a good stir.
Ingredients
- 2 cups (400 g) dried marrowfat peas (or regular dried green peas)
- 1 tsp bicarbonate of soda (baking soda)
- 1 tbsp sugar
- 1 tsp salt, plus more to taste
- 2 tbsp (30 g) butter or margarine
- Freshly ground black pepper, to taste
- Optional: 1 small onion, peeled and quartered (for simmering)
Instructions
- Rinse the dried peas thoroughly under cold water. Place them in a large bowl, cover with plenty of cold water (at least 3 inches above the peas), and stir in the bicarbonate of soda. Soak overnight, or for at least 8 hours. The peas will swell significantly.
- Drain and rinse the soaked peas well. This removes the bicarb and helps prevent a bitter taste.
- Transfer the peas to a large saucepan. Add the sugar, salt, and the optional onion quarter. Pour in enough fresh cold water to cover the peas by about 1 inch (2.5 cm).
- Bring to a boil over high heat, then reduce the heat to low, cover, and simmer gently for 45–60 minutes, stirring occasionally. The peas should be very soft and starting to break down.
- Remove the onion if used. Stir in the butter and season with pepper and extra salt if needed. Use a wooden spoon to mash the peas against the side of the pan until you get a thick, creamy consistency. If they look too dry, add a splash of boiling water.
- Simmer uncovered for another 5–10 minutes to thicken, stirring frequently. The peas should hold their shape loosely, not be soupy. Serve hot.
Tips
- Soaking is non-negotiable: Marrowfat peas need at least 8 hours soaking to rehydrate fully. If you’re short on time, use the “quick soak” method: boil the peas with the bicarb for 2 minutes, then let them sit in the hot water for 1 hour before draining and proceeding.
- Bicarb is your friend: It softens the pea skins and helps them break down into that classic mushy texture. Don’t skip it, but don’t overdo it—too much can make the peas taste soapy.
- Consistency control: If your peas are too thick, add a little boiling water. If they’re too thin, keep simmering uncovered—they’ll thicken as they cool. Remember they’ll firm up more as they sit.
- No marrowfat peas? You can use split green peas, but they’ll cook faster (about 30 minutes) and have a slightly different, more uniform texture. They won’t have the same “skins” that give authentic mushy peas their character.
Serving Suggestions
Serve a generous scoop alongside classic fish and chips, with a wedge of lemon and a sprinkle of malt vinegar. They’re also excellent with a meat pie, bangers and mash, or as a side to roast chicken. For a simple supper, spread them on thick buttered toast and top with a poached egg.
Variations
- Minty mushy peas: Stir in 2 tablespoons of chopped fresh mint and a squeeze of lemon juice just before serving for a brighter, fresher flavour.
- Spicy kick: Add a finely chopped green chilli or a pinch of cayenne pepper along with the butter for a subtle heat.
- Vegan version: Use a plant-based butter or olive oil instead of butter, and skip the onion if you prefer—the peas are naturally vegan-friendly.
- Pea and ham soup: Turn leftovers into soup by adding a ham hock or bacon bones to the simmering water, then blend until smooth. (If adding ham, cook until the meat is tender and shred it back in.)
Storage and Reheating
Cool any leftover mushy peas completely, then transfer to an airtight container. They will keep in the refrigerator for up to 3 days. To reheat, place in a saucepan with a splash of water or milk and warm over low heat, stirring frequently, until piping hot (165°F / 74°C). You can also microwave them in a covered bowl for 2–3 minutes, stirring halfway. Mushy peas freeze well for up to 3 months; thaw overnight in the fridge before reheating.
Frequently Asked Questions
Can I make mushy peas without soaking overnight? Yes, use the quick-soak method: boil the peas with the bicarb for 2 minutes, then let them sit in the hot water for 1 hour. They won’t be quite as creamy, but it works in a pinch.
What are marrowfat peas? They are a mature, dried green pea with a starchy texture and a slightly nutty flavour. They are the traditional choice for British mushy peas. If you can’t find them, use whole dried green peas (not split) for the closest result.
Why are my mushy peas bitter? Bitterness usually comes from not rinsing the peas well after soaking, or from using too much bicarbonate of soda. Always rinse thoroughly and measure the bicarb carefully.
Can I use frozen peas instead? You can, but the texture will be different—more like a pea purée than traditional mushy peas. If using frozen, simmer them for 10 minutes in a little water, then mash with butter and seasoning. They won’t have the same hearty bite.
How do I get them really green? The vibrant green colour comes from the peas themselves. Adding a pinch of sugar helps, and some people add a tiny drop of green food colouring, but that’s optional. Overcooking can dull the colour, so keep the simmer gentle.
Are mushy peas healthy? They are a good source of fibre and plant protein, and naturally low in fat. The butter and salt are the main additions, so you can adjust them to suit your diet.
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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