Slow Cooker Sirloin Beef Tips and Gravy Recipe - Six Sisters' Stuff

Ingredients

• 1/2 cup all-purpose flour
• 1 teaspoon seasoned salt
• 1/4 teaspoon ground pepper
• 1/4 teaspoon garlic powder
• 3 pounds beef tips (or stew meat cubed)
• 2 Tablespoon olive oil
• 1 onion (diced)
• 1 cup fresh mushrooms
• 10.5 ounces beef broth (condensed)
• 2 Tablespoon Worcestershire sauce
• 2 Tablespoon ketchup
• 2 Tablespoon red wine vinegar
• 2 Tablespoon water
• 1/2 teaspoon Italian seasoning
• 2 Tablespoon cornstarch
• 2 Tablespoon cold water