Servings 6-8Ready In: 1 HourPrep Time: 15 Minutes 2 Tbsp. olive oil 5 Tbsp. butter 2 lb. yellow onions, halved & cut in 1/4 inch slices 3/4 tsp. granulated sugar 1/2 tsp. dried thyme optional 1 Tbsp. salt & pepper to taste 1 Tbsp. all-purpose flour 10 Cup beef...