Wondering what to do with the half-bunches of celery, cilantro, green onions, and herbs from a friend's garden? Try turning it all into a creamy soup. Soups are a great way to use up wilting veggies from the fridge.
In a large saucepan or Dutch oven, heat butter and oil over medium heat.
Add chopped green onions and celery and sweat for about 5 minutes.
Trim any hard ends, woody stems, and brown leaves from the herbs and wash. The mix of herbs you use will affect the taste of the final soup. If you don't want a strong herb like tarragon or mint to predominate, use them sparingly.
Add the herbs to the celery and onions and wilt thoroughly.
Add the milk and chicken broth and bring to a simmer for 1 to 2 minutes. Turn off the heat. Process with an immersion blender and allow to sit, covered for 5 minutes. This will thoroughly cook the herbs.