In a large mixing bowl, add in the butter, shortening, and sugar. Mix until light and fluffy. It will take about 2 minutes.
Add in the eggs one at a time and vanilla.
Add in the cake flour and beat on low until most of the flour is combined. Turn mixer on medium high and beat for about 30 seconds.
Cover with plastic wrap and chill for 30 minutes.
Preheat oven to 350 degrees.
Scoop the cookies and place on a parchment lined baking sheet. Adds sprinkles.
Depending on the size of the cookies, they will take 10 - 14 minutes to bake. Small cookies will take about 10 minutes and large cookies will take close to 14. The edges will become golden brown.
Remove from the oven and cool for 10 minutes for moving. Place on a cooling rack.