PREHEAT oven to 300° F. Grease baking sheets.
BEAT egg whites, salt and cream of tartar in small mixer bowl until soft peaks form. Gradually add sugar; beat until stiff peaks form. Gently fold in morsels 1/3 cup at a time. Drop by level tablespoon onto prepared baking sheet.
BAKE for 20 to 25 minutes or until meringues are dry and crisp. Cool on baking sheets for 2 minutes; remove to wire racks to cool completely. Store in airtight containers.