Corn Chowder with butter

4 ounces bacon , sliced and cut into 1 inch pieces 2 tablespoons unsalted butter 2 cups onions , chopped 2 tablespoons all-purpose flour 4 cups canned chicken[...]

1 cup diced ham 15 ounces cream-style corn 1/4 cup chopped onion 1/2 cup chopped celery 1/2 cup thin sliced carrot 2 cups diced potatoes 1/2 cup chopped[...]

2 tablespoons butter 4 scallions , white bulbs and green tops chopped and reserved separately 1 red bell pepper , chopped 2 celery ribs , chopped 1 lb boiling[...]