Preheat oven to 350 degrees F. Line rimmed baking sheets with parchment paper or silicon baking mat and set aside.
In a small bowl combine cinnamon and sugar and set aside.
In a medium bowl combine flour, salt and baking powder, set aside.
In the bowl of a stand mixer cream the butter and sugar. Add eggs, one at a time, beating well after each addition. Add vanilla and beat well.
Slowly add dry ingredients and mix until combined. Using a small scoop, the size of a tablespoon, scoop dough and roll into a ball. Roll ball in cinnamon sugar and place on prepared baking sheet. Repeat until baking sheet is full.
Bake at 350 degrees F. for 10 - 13 minutes until edges are browning and tops of cookies are puffy. Remove from oven and cool on baking sheet for 2 minutes. Remove to cooling rack to cool completely.