Fresh Pea and Mint Soup with Buttermilk

Prep: 10 minCook: 20 min4 servingsmediumBritish
Fresh Pea and Mint Soup with Buttermilk

Bright, herbaceous soup made with young peas, spring onions, and potato, finished with fresh mint and buttermilk or soured cream. Delicate flavor best preserved by minimal cooking of the peas. Serve hot or chilled, garnished with blanched peas and a drizzle of dairy.

Ingredients

4 servings
  • 1 bunch green onions, trimmed and roughly chopped
  • 1 medium potato, peeled and diced
  • 1 clove garlic, crushed
  • 3 ½ cups vegetable or chicken stock
  • 2 lb young peas in the pod
    frozen peas900g to 600gvegetarian

    use thawed; reduces cooking complexity

  • shelled peas, from about 250g (9oz) of peas in pod
  • 4 tbsp fresh mint, chopped
    basil0.8:1vegetarian

    different herb profile

    Full guide →
  • 1 large pinch superfine sugar
  • 1 tbsp fresh lemon or lime juice
    white wine vinegar1 tbspvegetarian

    less citrus brightness

  • 10 tbsp buttermilk or soured cream
    Greek yogurt1:1vegetarian

    tangier flavor

Instructions

  1. 1

    Put green onions, potato, garlic, and stock in a large pan. Bring to boil, reduce heat, and simmer until potato is very soft, about 15 minutes.

  2. 2

    For garnish, blanch 3 tbsp of shelled peas in boiling water for 2-3 minutes, drain, and transfer to cold water. Set aside.

  3. 3

    Add remaining peas to soup and simmer for 5 minutes.

  4. 4

    Stir in mint, sugar, and lemon or lime juice. Cool slightly.

  5. 5

    Pour into food processor or liquidiser and blend until smooth or to desired consistency.

  6. 6

    Stir in half the buttermilk or soured cream. Taste and season with salt and pepper.

  7. 7

    To serve cold: cool quickly, then chill. Add more stock if needed before serving. To serve hot: return to rinsed pan and reheat without boiling to prevent curdling.

  8. 8

    Serve in bowls, garnish with remaining buttermilk or soured cream and blanched peas.

Tips

Tip 1

Do not simmer peas longer than 5 minutes to avoid losing fresh flavor.

Tip 2

To prevent buttermilk or soured cream from curdling when reheating, do not allow soup to boil.

Tip 3

If serving chilled, soup will thicken as it cools; add extra stock to achieve desired consistency.

Good to Know

Storage

Refrigerate up to 3 days in airtight container. Freeze up to 3 months (texture may become slightly grainy upon thawing).

Make Ahead

Prepare through blending step up to 1 day ahead. Stir in buttermilk or soured cream just before serving.

Serve With

Serve hot in bowls with garnish of blanched peas and remaining buttermilk or soured cream drizzled on top. Also serves well chilled on warm days.

See pairing guide →

Common Mistakes

Watch

Do not cook peas longer than 5 minutes to avoid losing bright flavor and color.

Watch

Do not allow soup to boil when reheating if using buttermilk or soured cream, as it will curdle.

Substitutions

Dairy-Free Swaps

buttermilk or soured cream
coconut cream0.8:1vegetarianvegandairy-free

adds richness

Full guide →

General Alternatives

young peas in the pod
frozen peas900g to 600gvegetarian

use thawed; reduces cooking complexity

Full guide →
buttermilk or soured cream
Greek yogurt1:1vegetarian

tangier flavor

Full guide →
fresh mint
basil0.8:1vegetarian

different herb profile

Full guide →
lemon or lime juice
white wine vinegar1 tbspvegetarian

less citrus brightness

Full guide →
Find more substitutions →