Making your own roasted garlic purée is very simple. Heat oven to 375°F. Slice 1/2 inch off the tops of 4 garlic bulbs. Place in a small roasting dish. Drizzle 1/4 to 1/2 cup olive oil and sprinkle lightly with salt and pepper. Cover with a lid or wrap with aluminum foil and bake for 40 minutes to 1 hour. Remove from oven, allow to cool, then take each bulb and squeeze out the cloves into a food processor. Discard remaining skin. Process until smooth, season with salt and pepper, transfer to a small jar and refrigerate until needed.