Preheat your oven to 350 degrees F.
Prepare shallow baking pan or roaster, by placing onions, half of the thyme and rosemary in the pan. Set aside.
Salt and pepper ribs on both sides, then season with Blau's Secret Recipe seasoning, garlic, Dijon mustard and the other half of thyme, rosemary
Place ribs in a single layer in prepared roasting pan.
Carefully cover baking pan with foil paper and bake for about an hour. After an hour uncover and continue cooking for about 30 minutes. This lets the liquid reduce and the pork to brown nicely.
Serve the ribs with mashed potatoes, topped with sauce from the ribs.