If beef is lean, wipe on absorbent towel. If meat is fatty, brown in skillet to sear and remove fat. Place cubes in crock-pot. Combine 1/3 cup flour with salt and pepper, toss with beef to coat. Add all vegetables except tomatoes to crock-pot and mix well. Combine beef broth, wine, sugar and Kitchen Bouquet. Pour over meat and vegetables. Stir carefully. Add the drained tomatoes. Cover and cook on high for 4-5 1/2 hours. One hour before serving, make paste of flour and water and add to mixture until thickened.