Prepare the Dough: In a large bowl, beat together the room-temperature butter and cream cheese until the mixture is light and smooth. Gradually mix in the powdered sugar until it's fully combined.
Add Egg and Vanilla: Crack in the egg and add the vanilla extract, mixing until the dough is smooth and creamy.
Sift Dry Ingredients: In a separate bowl, sift together the flour, baking powder, and salt. This is an important step to ensure a light and airy dough.
Combine Wet and Dry: Slowly incorporate the dry ingredients into the wet mixture, stirring thoroughly until combined.
Chill the Dough: Cover your bowl with plastic wrap and chill the dough in the refrigerator for at least 60 minutes. This helps the flavors meld together and makes for easier rolling.
Preheat and Prepare: When you’re ready to bake, preheat your oven to 375°F (190°C) and line a baking sheet with parchment paper.
Cinnamon Sugar Coating: In a small bowl, combine the sugar and cinnamon.
Shape the Cookies: Scoop the chilled dough and roll it into 1-inch diameter balls. Roll each ball in the cinnamon-sugar mixture until fully coated.
Bake: Arrange the coated dough balls on the baking sheet, ensuring space for spreading, and bake for 8-10 minutes, until the edges are lightly golden.
Cool and Enjoy: Allow the cookies to cool on the baking sheet for a few minutes before transferring them to a wire rack to cool completely.