Sprinkle chicken with seasonings. In a large nonstick skillet, heat oil over medium-high heat; brown chicken on both sides, beginning skin side down. Remove from pan, reserving drippings., In same pan, saute shallot and garlic in drippings over medium-high heat until tender, 1-2 minutes. Stir in preserves, broth, horseradish sauce and half of the green onions. Add chicken; cook, covered, over medium heat until a thermometer reads 170°-175°, 10-12 minutes., To serve, spoon sauce over chicken; sprinkle with remaining green onions.