1/2 cup (1 stick) salted butter, at room temperature
2/3 cup packed light brown sugar
1/2 cup granulated sugar
1 large egg, beaten
1 1/2 cups all-purpose flour
1/2 teaspoon pumpkin pie spice
1/2 teaspoon baking powder
1/4 teaspoon baking soda
1/3 cup bittersweet chocolate chips, gently chopped
1/4 cup (2 ounces) coarsely crushed red or green candy canes (4 to 5 candy canes)