Spinach Soup

Ingredients

• olive oil
  2 tablespoons
• yellow onion

  cut into small dice
  1 small
• green garlic

  white part only, sliced very thin
  3 unit
• kosher salt
  1 unit
• potato

  peeled and diced
  1 medium
• chicken stock or water
  4 cups
• Italian parsley leaves
  1 cup
• fresh spinach

  stems removed or 1½ pounds baby spinach
  2 bunches
• black pepper in a mill
  1 unit
• minced fresh chervil or 1 teaspoon minced fresh tarragon
  2 teaspoons
• crème fraîche

  stirred until fairly thin
  3 tablespoons