Step 1

Heat oven to 325°F.

Step 2

Combine flour, baking powder, lime zest and salt. Beat butter and sugar in large bowl with mixer until light and fluffy. Blend in eggs and vanilla. Gradually add flour mixture, beating well after each addition. Stir in white chocolate, nuts and cranberries.

Step 3

Divide dough in half. Use lightly floured hands to roll each half into 14-inch log; place on baking sheet sprayed with cooking spray.

Step 4

Bake 25 to 30 min. or until lightly browned. Transfer biscotti to cutting board; cool 10 min. Use serrated knife to diagonally cut each log into 12 slices; place upright on baking sheet. Bake 15 to 18 min. or until slightly dried. Remove to wire racks; cool completely.

Step 5

Melt semi-sweet chocolate as directed on package. Dip tips of cooled biscotti in melted chocolate, then place in single layer on waxed paper; let stand until chocolate is firm.