This tasty spread can be prepared a day in advance and refrigerated. Bring it to room temperature before serving.
In a small bowl combine the lemon zest, thyme, pepper, and garlic. Divide in half. Put half in a small mixing bowl with the two cheeses and mix well. Spoon the cheese mixture into a serving bowl. Add the olive oil to the remaining half of the herb mixture and spoon this on top of the cheese mixture. Serve with crackers.