Combine first 6 ingredients in a large zip-top plastic bag; add 1/4 teaspoon salt and 1/8 teaspoon pepper. Add pork; seal and marinate in refrigerator 2 hours, turning bag occasionally. Remove pork from bag, reserving marinade. Sprinkle pork with 1/4 teaspoon salt, 1/8 teaspoon pepper, and flour.
Preheat oven to 350°.
Heat oil in a large ovenproof skillet over medium-high heat. Add pork; cook 5 minutes, browning on all sides. Pour reserved marinade over pork. Wrap handle of pan with foil; bake at 350° for 10 minutes or until a thermometer registers 160° (slightly pink). Remove pork from pan; let stand 10 minutes. Cut crosswise into 8 pieces.
Combine 1 tablespoon water and cornstarch, stirring well with a whisk. Bring marinade to a boil over medium-high heat. Add cornstarch mixture to marinade; cook 1 minute or until sauce thickens, stirring constantly. Serve over pork; sprinkle with cilantro.