Mushy peas are a beloved British side dish, especially classic with fish and chips. Made from dried marrowfat peas that are soaked and simmered until they break down into a thick, comforting purée, they have a mild, earthy flavor and a satisfyingly soft texture. This recipe delivers that authentic taste and creamy consistency right in your own kitchen.
Ingredients
- 1 lb (450 g) dried marrowfat peas
- 1 tsp (5 g) baking soda (for soaking)
- 1 tbsp (15 ml) vegetable or sunflower oil
- 1 small onion, finely chopped
- 4 cups (1 L) water (plus more for soaking)
- 1 tsp (5 g) salt, or to taste
- 1/2 tsp (2.5 g) sugar (optional, to balance)
- Freshly ground black pepper, to taste
- 2 tbsp (30 ml) malt vinegar (for serving, optional)
Instructions
- Soak the peas: Place the marrowfat peas in a large bowl and cover with plenty of cold water (about 3 inches above the peas). Stir in the baking soda. Soak overnight, at least 12 hours, or up to 24 hours. The peas will swell significantly.
- Drain and rinse: After soaking, drain the peas in a colander and rinse thoroughly with fresh water to remove any excess baking soda.
- Sauté the onion: In a large pot or Dutch oven, heat the oil over medium heat. Add the chopped onion and cook, stirring occasionally, until soft and translucent, about 5 minutes.
- Add peas and water: Add the drained peas to the pot, then pour in the 4 cups (1 L) of water. The water should just cover the peas; add a little more if needed.
- Simmer: Bring the mixture to a boil, then reduce the heat to low, cover, and let it simmer gently. Cook for 1 hour to 1 hour 15 minutes, or until the peas are very tender and have started to break down. Stir occasionally to prevent sticking.
- Season: Once the peas are soft, remove the lid and continue to simmer for another 10–15 minutes, stirring frequently, until the mixture thickens to a porridge-like consistency. You can mash them with a potato masher for a smoother texture if desired.
- Finish and serve: Stir in the salt, sugar (if using), and a generous amount of black pepper. Taste and adjust seasoning. Serve hot, with a splash of malt vinegar if you like.
Tips
- Soaking is essential: Do not skip the overnight soak; it softens the peas and reduces cooking time significantly. If you’re short on time, a quick-soak method works: boil the peas with baking soda for 2 minutes, then let them sit in the hot water for 1 hour before draining and cooking.
- Consistency control: For looser mushy peas, add a little more water during cooking. For a thicker, more scoopable texture, cook uncovered for the last 15 minutes to evaporate excess liquid.
- Substitutions: If you can’t find marrowfat peas, you can use green split peas, but the texture will be slightly different and the color more yellow-green. Add a pinch of sugar to mimic the sweetness of marrowfat peas.
- Common mistake: Adding salt too early can toughen the pea skins. Always add salt at the end of cooking.
Serving Suggestions
Serve mushy peas as a classic side to fish and chips, alongside a meat pie, or with bangers and mash. They also pair well with roasted meats, grilled sausages, or as a topping for a hearty plate of bubble and squeak. A drizzle of malt vinegar and a sprinkle of black pepper are traditional finishing touches.
Variations
- Minty mushy peas: Stir in 2 tablespoons of chopped fresh mint just before serving for a fresh, bright flavor.
- Spicy kick: Add a finely chopped red chili or a pinch of cayenne pepper along with the onion for a subtle heat.
- Cheesy peas: Stir in 1/2 cup (50 g) of grated cheddar cheese at the end for a richer, indulgent version.
- Vegan butter: For extra creaminess, stir in 1 tablespoon of vegan butter or margarine before serving.
Storage and Reheating
Store leftover mushy peas in an airtight container in the refrigerator for up to 3–4 days. To reheat, place them in a saucepan with a splash of water or milk, and warm over medium heat, stirring frequently, until heated through. You can also microwave them in a covered bowl for 2–3 minutes, stirring halfway. Mushy peas also freeze well for up to 3 months; thaw overnight in the fridge before reheating.
Frequently Asked Questions
What are marrowfat peas?
Marrowfat peas are a variety of large, starchy peas that are allowed to dry fully on the plant. They are the traditional pea used for mushy peas in the UK and have a distinct, slightly sweet flavor and creamy texture when cooked.
Can I use frozen peas instead?
Frozen peas are not suitable for this recipe because they are already tender and will turn to a watery mush without the same body. They also lack the starchiness of marrowfat peas, so the final texture will be very different.
Why do I need to soak the peas with baking soda?
The baking soda helps to soften the pea skins and speed up the soaking process, allowing the peas to absorb water more evenly. It also helps to break down the pectin in the peas, resulting in a smoother, creamier texture.
Can I make this in a slow cooker?
Yes, you can. After soaking and draining the peas, combine them with the onion, water, and a pinch of salt (add more salt later) in a slow cooker. Cook on low for 6–8 hours or on high for 3–4 hours, until the peas are tender and have broken down. Stir occasionally if possible.
How do I get the peas to break down more easily?
Besides soaking thoroughly, you can help the peas break down by mashing them with a potato masher or blending them with an immersion blender after they are fully cooked. Be careful not to over-blend, or they may become too smooth and lose their rustic texture.
Can I use this recipe for mushy pea fritters?
Absolutely! Once the mushy peas are cooked and cooled, you can shape them into patties, coat them in breadcrumbs, and fry them until golden brown. This is a great way to use leftovers.
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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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