Melt butter in a large saucepan over medium heat then add diced onions, sliced green onions and salt. Cook about 5–6 minutes, until onion is tender and translucent.
Add chicken broth then bring to a boil. Add peas then return to a boil. Allow fresh peas to boil for 5 minutes and boil frozen peas for 1 minute.
Remove from heat then puree soup in a blender in batches or use an immersion blender to puree the soup right in the pot.
Stir in Greek yogurt and season to taste with salt and pepper. Serve with a bit of finely chopped fresh mint, garlic croutons or a drizzle of high-quality olive oil.
Notes
Our spring sweet pea soup is simple to make but still elegant enough for a dinner party!