Corn Chowder with thyme

1 large onion , chopped 2 stalks celery , chopped 1/2 green bell pepper , chopped 1/4 cup butter 2 tablespoons olive oil 2 cloves garlic , minced 8 cups[...]

2 slices bacon , diced 1 tablespoon unsalted butter 1 3/4 cups diced onions 3 -4 tablespoons unbleached flour (I used a gluten-free blend or garfava flour,[...]