• Before digging into the step-by-step directions, remember that cooking this dish is as much about the technique as it is about the ingredients. Proper seasoning, attention to cooking time, and resting periods contribute significantly to the final product.
• Step-by-Step Directions

Step 1: Preparing the Prime Rib

• Start by preheating your oven to 500 degrees Fahrenheit. While this heats, take the prime rib out of the refrigerator to ensure it comes up to room temperature. This step is crucial as it helps with even cooking. Pat the surface of the meat dry with paper towels.

Step 2: Seasoning

• Mix the softened butter, minced garlic, Dijon mustard, coarse salt, black pepper, rosemary, and thyme in a bowl. Apply this compound butter generously over the entire surface of the prime rib. Make sure to work it into any nooks and crannies. You want flavor, and this is where it starts.

Step 3: Roasting the Prime Rib

• Place the seasoned prime rib in a roasting pan, bone side down. Put it into your preheated oven for 20 minutes at 500 degrees. This initial high temperature will create a beautiful crust. After 20 minutes, reduce the oven temperature to 325 degrees and continue cooking. As a rule of thumb, roast for about 15-20 minutes per pound for medium-rare. Use a meat thermometer to check for doneness. Aim for 130 degrees Fahrenheit for medium-rare.

Step 4: Resting the Meat

• Once the prime rib reaches your desired temperature, take it out of the oven. Let it rest for at least 20-30 minutes. This step is vital for juicy meat as it allows the juices to redistribute.

Step 5: Making the Au Jus

• While the prime rib rests, make your au jus. Gather your beef stock, dry red wine, and pan drippings. In a saucepan, combine these ingredients and bring them to a simmer. If you like a thicker consistency, whisk in a slurry made of arrowroot powder or cornstarch dissolved in a splash of cold water. Keep it on low heat until ready to serve.