For the cold pea-mint yogurt soup, peel the onions and sauté them with the mint in a little olive oil until translucent, add the peas and pour the liquid.
Simmer for five minutes and then add the yogurt. Puree finely with a hand blender and season with salt and pepper. Chill in the refrigerator for several hours.
Cut the remaining mint into fine strips and mix with the peas and some olive oil. Arrange the cold soup in bowls or plates and garnish with the mint peas. Serve the cold pea-mint yogurt soup and enjoy.