Step 1

In a large mixing bowl, cream the butter by mixing the softened butter and sugar until creamy and somewhat smooth.

Step 2

Continue mixing and add egg yolks, vanilla and baking powder. Then add one cup of flour at at time and mix thoroughly. Optional: Form into one ball and refrigerate for 1 hour for easy handling.

Step 3

Preheat oven to 350F.  Roll a 1 inch or so ball with the cookie dough and flatten it. Dip one side into the hollyberry sprinkles and put it face side up on the cookies sheet.

Step 4

Repeat with the rest of the cookie dough and space them about 1 1/2 inches on the cookie sheets. Bake cookies for 10 min. Let cool before storing.