Lemon and Pistachio Biscotti | Community Recipes | Nigella's Recipes | Nigella Lawson

Ingredients

• 1 tablespoon finely grated lemon peel
• 4 medium eggs
• 1 cup pistachios (shelled and chopped)
• 2 ounces chopped coarsely butter
• 1 cup superfine sugar
• 1 teaspoon vanilla extract
• 2¼ cups all-purpose flour
• 1 teaspoon baking powder
• ½ teaspoon baking soda
• 1 tablespoon water
• 2 tablespoons superfine sugar (extra)