1. Beat together brown sugar and margarine until blended. Add eggs and vanilla and beat until mixture is fluffy.
2. Stir together flour, baking powder, baking soda and salt in a medium bowl. Add to wet ingredients, beating until well blended.
3. Stir in oats, coconut and chocolate chips.
4. Drop dough in rounded tablespoons onto cookie sheets, about 2 inches (5 cm) apart. Bake in a preheated 375°F (190°C) oven until lightly browned, 9 or 10 minutes. Let cookies cool on cookie sheet for a few minutes, then remove to wire rack to cool completely.
Tip:Â To pack brown sugar means to press or pack it firmly into the measuring cup.
Tip:Â These cookies freeze well.