Caramelized Onion with sourdough

1 loaf sourdough bread (a round loaf) 2 tablespoons unsalted butter 1 tablespoon olive oil 2 medium sweet onions , coarsely chopped (Vidalia onions) 1[...]

1 tablespoon unsalted butter 1 small onion , sliced thin 1 tablespoon brown sugar 1 cup unbleached all-purpose flour 2 teaspoons baking powder 3/4 teaspoon[...]

1 teaspoon butter 1 1/2 cups vertically sliced onions 1 1/3 cups finely chopped red bell peppers 3/4 cup chopped Canadian bacon 6 cups sourdough bread, cut[...]