In a medium bowl, stir together cookie mix, oil, and water until a soft dough forms. Stir in chocolate chips and pretzel bits.
Shape dough into 18 balls, about 1 inch. Place 2 inches apart on ungreased cookie sheet. Flatten gently.
Bake in preheated 375° oven for 8 to 10 minutes or until edges begin to brown. Cool at least 2 minutes on cookie sheet before removing to cool on a wire rack. Cool completely and store in an airtight container.