Caldo Verde Soup

1/4 cup olive oil
1 large onion, diced
2 cloves garlic, thinly sliced
10 ounces chorizo or other spicy sauage, diced
6 medium potatoes, peeled and diced
8 cups cold water
1 bunch kale, cut into very fine strips
Salt and pepper to taste

In a large pot, heat the olive oil over medium heat. Add the onions and cook until they are translucent.
Add the garlic and half the chorizo and cook for 2 minutes. Add the potatoes, cover everything with the water, bring to a boil and lower the heat, simmering until the potatoes are almost done, about 15 minutes.
When the soup is cool enough to handle, purée it in the food processor and return to the pot. Add the greens, bring everything back to a boil and simmer for 2 minutes. Season with salt and pepper, ladle into bowls, and garnish with the remaining cubes of
chorizo.