Peel onions and cut them into rings. Peel garlic and cut into pieces. Wash the chiles thoroughly. Wash the rosemary, dab dry and pluck the leaves from the stalk. Cut the camembert into eighths. Put camembert, chiles, onion rings, garlic, rosemary and peppercorns in a glass and pour the oil over them. Let the camembert steep in the oil for 2-3 hours