1. To prepare sauce, combine the first 11 ingredients in a large bowl, stirring with a whisk. Set aside.
2. To prepare stir-fry, heat 1 tablespoon olive oil in a large nonstick skillet over medium-high heat. Add chicken to pan, and stir-fry for 4 minutes or until done. Remove chicken from pan, and keep warm. Add the remaining 1 tablespoon olive oil to pan. Add chopped broccoli and the next 5 ingredients (through garlic) to the pan; stir-fry for 4 minutes or until the vegetables are crisp-tender. Return chicken to pan, and stir in shrimp. Add sauce, and bring to a boil. Reduce heat, and simmer for 5 minutes or until the sauce thickens. Serve over rice.