Gumbo with shrimp

Olive oil 1 head garlic , minced 1 small red onion, diced 1 small yellow onion , diced 1 red pepper , cubed 1 green pepper , cubed 1 cup carrots , chopped 1[...]

1/2 cup butter , plus 1 tablespoon butter 3/4 cup all-purpose flour 1/2 cup chopped yellow onion (about 1/2 small onion) 1/4 cup chopped celery (about 1[...]