Combine Brussels sprouts and broth in a large skillet; bring to a boil. Cook 6 minutes or until sprouts are tender, stirring frequently. Drain; return to skillet.
Combine water, sugar, cornstarch, soy sauce, and garlic in a small bowl; stir until blended. Add cornstarch mixture to skillet; bring to a boil, and cook 1 minute or until thickened, stirring constantly. Remove from heat; sprinkle with the sesame seeds.