Using a hand mixer, cream the butter, cream cheese and sugar together until well combined and smooth.
Add the eggs and vanilla and again mix until combined, 30-45 seconds.
In a small bowl mix together the flour, baking powder and salt.
With the mixer on low, slowly combine the dry mix into the wet mix until just incorporated (do not over mix).
Using a small cookie scoop, scoop out the dough and roll into balls. Roll into the mixed sugar sprinkles, slightly press down on the cookie and place onto a parchment lined baking sheet. Repeat with all the dough.
Bake for 12-14 minutes. Cool on a cooling rack. Makes approx 46 cookies