Instructions: To prepare biscotti, mix together flour, granulated sugar, salt and baking powder. Rub in butter with fingertips or pastry blender until mixture resembles cornmeal.

Whisk eggs with lemon zest. Stir in flour mixture with fork until dough holds together. Scrape dough from bowl to floured work surface and knead lightly several times to mix.

Divide dough into 2 equal pieces. Roll each into cylinder about 12 inches long. Transfer cylinders to baking sheet covered with parchment paper or buttered aluminum foil. Flatten them with palm of hand so that they are about 1/2 inch thick.

Bake at 350 degrees on middle rack about 30 minutes until well risen, deep golden and firm. Cool on pan 15 minutes.

Remove logs from pan. Cut into diagonal slices about 1/2 inch wide.

Return slices to pan and arrange close together, cut side down. Bake about 20 minutes longer, until cut surfaces are deep golden in color.

Immediately after removing biscotti from oven, prepare glaze by combining powdered sugar and lemon juice in small pan. Stir well to mix. Cook over low heat, stirring, until bubbly around edges.

Immediately brush glaze over warm biscotti. Leave on pan until cooled and glaze is firm.

Makes 4 dozen biscotti.

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