My Favorite Slow Cooker Italian Beef - Better Than Bouillon

Ingredients

• 2 large yellow onions, sliced
• 3 pounds chuck roast, cut into 3-inch pieces
• 2 teaspoon dried basil leaves
• 1.5 teaspoon ground oregano
• 1.25 teaspoon garlic powder
• 1.25 teaspoon salt
• .25 teaspoon black pepper
• .5 cup dry red wine
• 1 tablespoon balsamic vinegar
• 2 teaspoon Better Than Bouillon Roasted Beef Base
• 1 bay leaf
• 6 sandwich rolls
• sliced smoked provolone cheese (optional)