Preheat the oven to 400°F and line two cookie sheets with parchment paper.
In a stand mixer with paddle attachment or in a large mixing bowl with hand mixer, cream together the softened salted butter with sugar until light and fluffy.
Add the eggs, one at a time, beating well after each egg.
Beat in the vanilla extract. Scrape the sides of the bowl with a rubber spatula.
Add the dry ingredients: baking powder, salt and all purpose flour. Mix on low speed just until everything is evenly incorporated.
Using a ⅓ cup, portion the dough into 12 cookie dough balls and place 6 on each baking sheet.
Roll the cookie dough into balls and flatten slightly so they look like thick hockey pucks.
In a small bowl combine ¼ cup sugar and 1 tablespoon cinnamon. Mix together well.
Coat the cookies in cinnamon sugar mixture and place back on cookie sheet.
Bake cookies, one pan at a time, on center rack for 12-14 minutes just until the centers no longer look wet and the edges are barely golden brown.
Let cookies cool for 5 minutes on cookie sheets, then remove to wire rack to cool completely.