HEAT oven to 350°F.

MIX butter and sugar in large bowl with wooden spoon until well blended. Gradually add flour, stirring after each addition until well blended. Stir in nuts.

SHAPE into 2-inch crescents, using 1 Tbsp. dough for each. Place, 2 inches apart, on parchment- or foil-covered baking sheets.

BAKE 12 to 15 min. or until lightly browned. Cool on baking sheets 2 min. Remove to wire racks; cool completely.

MELT chocolate as directed on package. Dip one end of each cookie in chocolate; top with nuts. Return to wire racks; let stand until chocolate is firm.