2Using a stand mixer fitted with the paddle attachment, add in the cheddar, parmesan, butter, salt and pepper. Beat on medium speed until smooth and creamy, stopping to scrape down the sides as needed until all ingredients are well incorporated.
3With the mixer on low speed, slowly add in the flour. Continue mixing, stopping to scrape down the sides as needed, until the dough is well mixed.
4Transfer dough to your spritz cookie press fitted with the shape of your choice.
5Pipe the dough directly onto the baking sheets (no parchment paper).
6Bake the crackers for 8 minutes, until golden brown on the bottom. Bake them on the bottom rack of the oven for the first 5 minutes, then move them for the top rack for the last 3 minutes.
7Remove from oven and transfer to a cooling rack to cool completely.