Beef with broth

2 lb beef chuck 1/4 c. all-purpose flour 1 tsp Kosher salt 1/4 tsp freshly-grnd black pepper 3 Tbsp. oil 2 Tbsp. unsalted butter 1 lrg onion cut 1/2"-thk[...]

1/3 cup olive oil 1/2 cup sliced onion 1/2 cup carrot 1/2 cup celery 1/4 teaspoon dried thyme 1/4 teaspoon sage 1 bay leaf 3 allspice berries or 3 cloves 6[...]