Rinse chilies. Snap off and discard stems; shake out most of the seeds. With scissors, working over a 1- to 2-quart pan, cut chilies into 1-inch pieces; drop into pan.
Add 1/2 cup water, garlic, cumin, oregano, cinnamon, and cloves. Bring to a boil; cover, reduce heat, and simmer, stirring occasionally, until chilies are soft, 10 to 15 minutes.
Pour chili mixture into a blender and whirl until smooth. If you have less than 1/2 cup, add water to make that amount. Add salt to taste. Let cool at least 15 minutes.
Nutritional analysis per tablespoon.