This sauce is delicious with fish or chicken or even used as a sandwich spread.
- Remove crusts from thin bread. Dip the bread in water and squeeze dry. Crumble bread and add it to the chopped hazelnuts.
- Gradually add the oil, mixing constantly with an electric mixer or a whisk.
- Stir in the vinegar and crushed garlic. Season with salt and pepper. The sauce should be smooth and creamy.