1. Heat oven to 375°F. Lightly grease cookie sheet or line with parchment paper. Beat butter, brown sugar, eggs and vanilla until well blended. Add flour, baking soda, cinnamon and salt; beat until blended.
2. Stir in oats, toffee bits and coconut, if desired, with spoon. Drop dough by rounded teaspoons about 2 inches apart onto prepared cookie sheet.
3. Bake 8 to 10 minutes or until edges are lightly browned. Cool 1 minute; remove to wire rack. Makes about 48 cookies