Slow Cooker Beef Goulash

Name: Slow Cooker Beef Goulash
Ingredients: 3 pounds boneless beef chuck blade, or cross rib roast, cut into 1-inch cubes; 1 tablespoon vegetable oil; 3 onions thinly sliced; 4 cloves garlic minced; 1 teaspoon dried marjoram or oregano; 1 teaspoon caraway seeds optional; Salt and pepper; 2 tablespoons tomato paste; 1/4 cup all-purpose flour; 1 1/2 cups beef broth; 1/4 cup tomato-based chili sauce; 1 tablespoon sweet paprika; 1 tablespoon freshly squeezed lemon juice; 1 red bell pepper thinly sliced; 2 tablespoons chopped fresh dill or parsley; Sour cream