Chicken Tortilla Soup

this is Alissa Rothschild's recipe and one of my FAVORITES

This isn't exact. I don't really have a recipe for it - I just throw it together. But, this should be really close.

1 Medium Onion - Chopped
1 28 oz Can Diced Tomatoes
8 Corn tortillas - Chopped
6 Cloves Garlic - Minced
1 bunch Cilantro - Chopped
6 Tablespoons oil
1 Tablespoons ground Cumin
1 1/2 Tablespoons ground Chili Powder
2 Bay Leafs
7 Cups Chicken Stock
1/2 Cup Sour Cream
1 Rotisserie Chicken - Shredded
Salt to taste
Cayenne Pepper to taste (a few dashes)

Heat Oil over Medium Heat
Add Onions, Cilantro, Garlic, Tortillas - Cook for a few Minutes
Add the Tomatoes- Bring to Boil
Add Chicken Stock, Cumin, Chili Powder, Bay Leaves - Bring to Boil
Add Salt, Cayenne Pepper
Reduce Heat and Simmer 30 min or so
Remove Bay Leaves
Add Sour Cream
Blend Soup with and Immersion Blender until Smooth
Add Shredded Chicken