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 Tablespoons olive oil
• 1 onion (diced)
• 1 cup fresh mushrooms
• 10 1/2 ounces beef broth (condensed)
• 2 Tablespoons Worcestershire sauce
• 2 Tablespoons ketchup
• 2 Tablespoons red wine vinegar
• 2 Tablespoons water
• 1/2 teaspoon Italian seasoning
• 2 Tablespoons cornstarch
• 2 Tablespoons cold water