Pit olives if not already pit-free. Combine olives, 1/4 cup oil, garlic and herbs. Pulse ingredients together in a blender or food processor to
form a grainy puree, not a smooth paste. Taste and add more herbs if necessary, plus black pepper, lemon juice and hot pepper flakes if using.
The flavour of the mixture will develop further.
Pack mixture into a clean jar with an airtight lid. Cover the puree with a thin layer of olive oil, then put the lid on and refridgerate. It
will keep for a few months.
Let come to room temperature before serving. Refridgerate leftovers, first adding a fresh topping of oil.