Slow Cooker Sirloin Beef Tips in Mushroom Gravy!

Ingredients

• 3 pounds high quality sirloin cubed 1-1 1/2 inch in size
• 2 cubes of salted butter
• 4 tablespoon olive oil divided
• 1/2 lb sliced mushrooms
• 1 teaspoon seasoning salt divided
• 1 teaspoon white pepper
• 1 tablespoon black pepper
• 2 cups beef broth
• 2 teaspoons dark brown sugar
• 2 tablespoons Worcestershire sauce
• 2 tablespoons ketchup
• 1 teaspoon dried thyme
• 1 cup diced onion
• 3 tablespoons water
• 1 teaspoon Adobo red top
• 2 cloves of garlic minced
• 1 teaspoon parsley
• 2 teaspoons gravy master
• 2 tablespoons cornstarch

Instructions