2 large ripe tomatoes, skinned and seeded |
1 small onion, roughly chopped |
2 canned chipotle chilesen adobo or 2 dried chipotle chiles, soaked |
2 garlic cloves |
3 tbsp vegetable oil |
2 boneless and skinless chicken breasts, cut into bite-sized pieces |
3 3/4 cups chicken stock |
8 oz (225 g) Mexican fideos or angel hair pasta |
1/4 cup sour cream |
1 avocado, peeled, pitted, and cubed |