Heat oven to 375°F. In 2-quart saucepan, melt 1/4 cup butter over medium heat. Add brown sugar; cook 3 minutes, stirring constantly. Reduce heat to low. Add pecans, walnuts, cinnamon, salt, honey and maple syrup; mix well. Cook 3 minutes, stirring occasionally. Remove from heat; stir in maple flavor. Cool 15 minutes.