Prep the Garlic and Herbs: Place the peeled garlic cloves, rosemary, thyme, salt, and peppercorns in an oven-safe baking dish. Pour in the olive oil until the cloves are at least 75% submerged. If they aren’t, switch to a smaller dish or top off with a bit more oil.
½ pound garlic, 2 sprigs rosemary, 2 sprigs thyme, 10 whole peppercorns, 1 teaspoon salt, 1 ½ cups olive oil