Viral French Dip Sliders - My Homemade Recipe

Ingredients

• 1 package (12-count) Hawaiian rolls
• 1 pound deli roast beef (rare)
• 12 slices provolone cheese
• 2 tablespoons unsalted butter, softened
• 8 tablespoons unsalted butter
• 1 packet au jus mix, divided
• 1 teaspoon Worcestershire sauce
• 1 tablespoon sesame seeds
• ¾ teaspoon dried minced garlic
• ½ teaspoon onion powder
• 1½ cups French fried onions