PREHEAT oven to 200° F. Line baking sheets with parchment paper.
BAKE walnuts in shallow baking pan, stirring ocasionally for 5 minutes or until toasted; cool.
BEAT egg whites and vanilla extract in small mixer bowl on high speed until foamy. Add SPLENDA® Sugar Blend for Baking, one tablespoon at a time, until stiff peaks form. Stir in walnuts and morsels. Drop by rounded teaspoonfuls onto prepared baking sheets.
BAKE for 2 hours or until dry and crisp. Cool on baking sheets for two minutes; remove to wire racks to cool completely. Store in air-tight container(s).
Recipe courtesy of SPLENDA®.