PREHEAT oven to 350° F.
BEAT butter in large mixer bowl on MEDIUM-HIGH speed for 30 seconds. Add Brownie Mix and flour slowly; mix well on LOW speed for about 15 seconds. Add egg; beat on LOW speed for about 15 seconds until dough forms. Do not overmix. Refrigerate dough for 30 minutes.
SOAK pecans in water for 5 minutes; drain and blot dry. Arrange 5 pecans on ungreased baking sheets (1 for head, 4 for legs), leaving about a 1-inch circle in center and placing about 2 inches apart. Roll dough into 1 1/2-inch balls. Place each over circle onto pecans.
BAKE for 11 to 12 minutes or until top of cookie is no longer shiny. Cool on baking sheets for 2 minutes; remove to wire racks. Cut a small hole from corner of caramel packet. Drizzle over turtles. Store in single layers in tightly sealed container.