In a large skillet, cook bacon until crisp. Drain, reserving 2 tablespoon of drippings. Crumble bacon; set aside.
Saute onion in drippings until tender. Add flour, garlic, salt and pepper. Cook and stir until bubbly; cook and stir 1 minute more. Remove from heat and stir in sour cream until smooth. Add corn, parsley and half of the bacon; mix well.
Pour into a 1-qt. baking dish. Sprinkle with remaining bacon. Bake, uncovered, at 350° for 20-25 minutes or until heated through. Sprinkle with chives.