In 1-quart saucepan dissolve broth mix in water; add chili peppers and bring mixture to a boil. Stir in bell pepper and onion and return to a boil. Reduce heat to low, cover, and let simmer until vegetables are tender, about 10 minutes. Reduce heat to lowest possible temperature; add peanut butter and cook, stirring constantly, until peanut butter is melted and mixture is well blended. Makes 2 servings.