Roasted Turkey — Cafe Hailee

Name: Roasted Turkey — Cafe Hailee
Prep time: 36 h
Cook time: 4 h
Total time: 40 h
Ingredients: 2 tsp black peppercorns; 1 Tbsp coriander seeds; 1/4 cup diamond crystal kosher salt; 1/4 cup maple sugar (or brown sugar); 1 Tbsp baking powder (aids in crisping the skin!); 1 12-14 lb whole turkey, giblets removed, patted dry; 1 lemon, quartered; 2 shallots or 1 small onion, quartered; 1 garlic head, cut in half; 1 inch ginger root, sliced; 5 sprigs fresh thyme; 1 stick unsalted butter, softened; Olive oil, for drizzling