Peppercorn-Crusted Rib Roast | Savory

Ingredients

• 1 (8- 9 lbs) 3-rib bone-in standing rib roast, trimmed
• 1 1/2 tsp salt, divided, plus more for seasoning
• 1/4 cup Dijon mustard
• 1 tbsp coarsely ground mixed peppercorns
• 1 tbsp finely chopped rosemary, plus springs for garnish
• 1 tbsp minced garlic
• 2 tbsp olive oil