Mushy peas are a British chip shop classic: dried marrowfat peas simmered until they collapse into a thick, creamy, savory mash. This vegetarian version skips the traditional ham stock but keeps all the comforting flavor with a simple vegetable broth, a little sugar, and a splash of mint. It’s an easy, budget-friendly side that pairs perfectly with fish and chips, or any hearty meal.
Ingredients
- 1 ½ cups (300 g) dried marrowfat peas (or green split peas)
- 1 tsp (5 g) baking soda (for soaking)
- 4 cups (960 ml) vegetable stock (low-sodium)
- 1 small onion, finely chopped (about ½ cup / 75 g)
- 2 tbsp (30 ml) olive oil
- 1 tsp (5 g) sugar
- 1 tbsp (15 ml) white wine vinegar or malt vinegar
- Salt and black pepper, to taste
- 2 tbsp (30 g) butter or vegan butter (optional, for richness)
Instructions
- Rinse the dried peas under cold water. Place them in a large bowl, cover with plenty of cold water, and stir in the baking soda. Soak for at least 8 hours or overnight. The peas will swell significantly.
- Drain and rinse the soaked peas thoroughly. The baking soda helps soften them but must be rinsed off to avoid a soapy taste.
- In a large pot, heat the olive oil over medium heat. Add the chopped onion and cook until soft and translucent, about 5 minutes.
- Add the soaked peas and the vegetable stock. Bring to a boil, then reduce the heat to low, cover, and simmer gently for 1 hour to 1 hour 15 minutes, stirring occasionally, until the peas are very tender and starting to break down.
- Once the peas are soft, stir in the sugar, vinegar, and butter (if using). Use a potato masher or the back of a spoon to mash the peas to your desired consistency—some prefer a few whole peas, others a smooth purée.
- Season generously with salt and pepper. The mixture should be thick but spoonable; if too thick, add a splash of hot water or stock. Serve hot.
Tips
- Soaking is essential: Do not skip the overnight soak. It softens the peas and reduces cooking time dramatically. If you’re in a hurry, use the quick-soak method: boil the peas with baking soda for 2 minutes, then let them sit for 1 hour.
- Marrowfat peas vs. split peas: Marrowfat peas are the traditional choice and give the authentic texture. If you use green split peas, they cook faster (about 45 minutes) but have a slightly different flavor and are less starchy.
- Don’t oversalt early: The peas absorb salt as they cook, which can make them too salty by the end. Season only after they are fully tender.
- Adjust the consistency: Mushy peas should be thick but not dry. If they become too thick while cooking, add more hot stock or water a little at a time.
Serving Suggestions
Serve mushy peas as a classic side to fish and chips, or alongside a vegetarian pie, bangers and mash, or a simple grilled halloumi. They also work well as a topping for baked potatoes or as a dip with crusty bread.
Variations
- Minty mushy peas: Stir in 2 tablespoons of chopped fresh mint just before serving for a fresh, bright flavor.
- Spicy kick: Add a pinch of chili flakes or a chopped green chili with the onion for heat.
- Cheesy peas: Fold in ½ cup (50 g) grated cheddar or vegetarian Parmesan for a richer, indulgent version.
- Lemon twist: Add the zest of one lemon along with the vinegar for a citrusy note.
Storage and Reheating
Store leftover mushy peas in an airtight container in the refrigerator for up to 4 days. To reheat, place them in a saucepan over medium-low heat, adding a splash of water or stock to loosen the mixture. Stir frequently until hot throughout. 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 use frozen peas instead of dried? Frozen peas won’t give the same creamy, starchy texture. They cook too quickly and remain firm, so they are not a good substitute for authentic mushy peas.
Why do I need baking soda? Baking soda raises the pH of the soaking water, which helps break down the pectin in the pea skins, allowing them to soften faster and cook more evenly. It also helps the peas turn a lovely green color.
Can I make mushy peas without soaking? Yes, but it will take much longer—up to 3 hours of simmering—and the texture may be less creamy. Soaking is strongly recommended for the best results.
Are mushy peas healthy? They are naturally low in fat and high in fiber and plant protein. The butter and oil add some fat, but you can omit them for a lighter version.
What’s the difference between mushy peas and pease pudding? Pease pudding is made from split yellow peas, is thicker, and often includes eggs or butter. Mushy peas use marrowfat peas and are more liquid.
Can I use vegetable stock instead of water? Yes, vegetable stock adds more flavor than plain water. If you use stock, be mindful of the salt content; choose low-sodium and season at the end.
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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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