Carolina Barbecue Sauce

Jennifer S.

1 cup finely chopped onions
1 cup finely chopped green bell pepper
1 cup cider vinegar
3 tablespoons firmly packed light or dark brown sugar
2 teaspoons fresh lemon juice
1/2 teaspoon salt
1/2 teaspoon dry mustard
1/4 teaspoon crushed red pepper flakes, or to taste
1/4 teaspoon freshly ground black pepper, or to taste

In small saucepan, combine onions, bell pepper, vinegar,
brown sugar, juice, salt, dry mustard, pepper flakes and
black pepper; stirring constantly, bring liquid to a boil.
Reduce heat to low; simmer, stirring occasionally, 20
minutes, until flavors are blended.