Place the dried chilies in a bowl and add about 2 cups of boiling water.
Let it rest for about 15 minutes, until the chilies are softened.
Chop the onion and carrot into smaller pieces.
Drain the chilies, but reserve the water.
Cut the softened chilies into smaller pieces.
In a food processor, combine the chilies, bouillon powder, onion, carrot, sugar, lemon juice, vinegar, cumin, salt, black pepper and molasses in the food processor.
Add hot sauce, if using.
Add 1 cup of the reserved liquid and process well, until all ingredients are mixed and pureed.