chilled tomatillo and cucumber soup

Sounds like it's been unseasonably warm in a good portion of the country this week. Here's a cool soup that's perfect for hot summer days. It's also a great use of tomatillos (I always seem to default to making salsa verde with them otherwise...) A little heat from some sriracha or your favorite hot sauce goes a long ways. And don't be afraid to try other herbs instead of basil as garnish. Dill, cilantro, and/or mint would work well here too.

Chilled Tomatillo and Cucumber Soup (serves 4-6)
1tbls oil
1 large onion, diced
3 cloves garlic, minced
4 large cucumbers, seeded and roughly chopped
5 tomatillos (1lb), husks removed and chopped rougly
3-4 cups chicken or vegetable stock + 3-4 cups water
1/4 cup of cilantro, finely chopped
Juice from 1 lime

Salt and Pepper to taste
Garnish: Yogurt, Hot Sauce, Basil

Directions
Cook onions and garlic for 5 minutes over medium heat in a large pot
Add tomatillos and cucumbers and continue cooking 5 minutes
Add liquids (enough to cover by an inch or two) and bring to a boil
Remove from heat, add lime and cilantro, and let cool
Blend in blender or with immersion blender until smooth. Thin out with more water if necessary.
Adjust seasoning (you'll probably need a fair amount of salt, especially when its completely chilled)
Serve cold with garnishes