Preheat oven to 350 line a baking sheet with parchment paper.
In a large bowl with an electric hand mixer or in the bowl of a stand mixer fitted with a paddle attachment cream together butter, shortening, and sugar.
Add in eggs, vanilla, and instant pudding mix. Continue mixing until thoroughly incorporated .
In a separate bowl stir together flour, baking powder and salt.
Add the flour mixture to the butter mixture a little at a time mixing between additions until all the dry ingredients are
incorporated.
Place jimmies in a shallow bowl or dish.
Scoop out dough in tablespoon size scoops. Roll dough into a ball. Place cookie dough balls into a dish of jimmies and roll around pressing lightly until the dough ball is covered evenly with sprinkles.
Place on prepared cookie sheet about 2 inches apart.
Bake for 12-15 minutes or until set and lightly golden brown around the edges.
Remove from the oven and allow to cool on the baking sheet for 5 minutes before removing to a cooling rack to cool completely.