Preheat the oven to 350, and line a large cookie sheet with a piece of parchment paper or silicone mat.

In a medium bowl, beat together the softened butter and peanut butter with an electric mixer on high.

Next, add sugar and beat very well.

Then, add the egg and vanilla; beat again.

In a small bowl, stir together all remaining ingredients. Add this to the butter mixture and stir well, but do not over-mix.

Drop by large 2-tablespoon sized balls onto the prepared cookie sheet. Sprinkle some Christmas sprinkles over each cookie. You can also press extra candy and chocolate chips on top before baking to make the cookies super pretty.

Bake for 10 minutes, and then let cool for 5 minutes on the sheet before moving to a cooling rack.