This is so good and so easy and makes such a hit each time it's served. It's wonderful before dinner with wine. The trick is to find a bakery where you can get very fine quality French or Italian bread. Don't purchase bread that's wrapped in plastic. The plastic traps the moisture and softens the crust. The crust should be crusty! Don't use cheap olive oil. Get the good stuff. Many people like to experiment and add other herbs, including sage and rosemary. Use your imagination.
Combine all ingredients and let it sit, unrefrigerated, overnight.
Use as a dip with your favorite bread.