Add the roast to a braiser pan or dutch oven and drizzle with the olive oil. Season lightly with cracked black pepper.

In a small bowl, combine the soy sauce, water, sriracha, garlic, rice vinegar, honey and miso. Mix well.

Pour the marinade over the meat and cover the pot.

Bake covered for at least 3 1/2 hours. The meat should should be tender at this point, otherwise add another 30 minutes covered.

Raise the oven temperature to 350 F and cook the roast uncovered for 15-20 minutes at the end.