In a small bowl, whisk all sauce ingredients together; set aside.
Brown hamburger, with minced garlic in frying pan on medium heat (drain all but 1 tablespoon of fat before proceeding).
Add prepared pepper, onion and basil. (reserve some basil for garnish, if you wish)
Stir and cook until vegetables soften.
Add sauce, mix well, let bubble up, remove from heat; serve immediately, top with basil garnish, if you wish.