Whisk broth, soy sauce, Spleanda and orange extract together in a small bowl; set aside. Coat a large nonstick wok or skillet with cooking spray and set over medium-high heat. Add orange peel or zest, ginger and garlic; stir-fry until softened and aromatic, about 2 minutes. Add red pepper flakes and stir-fry 20 seconds. Add beef; stir-fry until lightly browned, about 2 minutes. Add sugar snap peas and continue stir-frying until crisp-tender, about 2 minutes. Pour in broth mixture and bring to a simmer; cover wok or skillet and cook 1 minute more. Stir in arrowroot mixture. Cook just until sauce thickens, about 5 to 10 seconds; immediately remove from heat and serve.
7 points per 1 1/2 cup serving