Heat oven to 350 degrees. Line baking sheet with parchment paper. Beat butter and sugar on medium-high speed until pale and fluffy.
Add baking powder, baking soda, cinnamon and salt; beat until well combined. Add egg; beat until blended, then beat in molasses. On low speed, beat in flour until just blended, add cinnamon chps.
Shape dough into 1 inch balls; roll in sugar. Place 2 inches apart on baking sheet. Bake 8-10 minutes until cookies are light brown around edges and tops crackle. Transfer to a wire rack to cool.