Preheat your oven to 400 degrees and set a rack towards the top half of your oven
Cube 1 stick of butter and place it into the freezer while you gather the other ingredients
In a large bowl, combine 2 cups of all purpose flour, 1 cup of grated parmesan, 1/2 teaspoon of salt, 1/2 teaspoon of garlic powder and 1/4 teaspoon of black pepper
Add the chilled butter cubes and work them into the dry ingredients with a pastry blender or stiff forks until no large pieces of butter remain
Drizzle in the whole milk, a little at a time, stirring as you go
As soon as the dough begins to come together, stop adding milk
Use your hands to bring the dough together into a firm ball
Divide the dough into three portions
Roll each portion of dough out on a sheet of parchment paper. Lightly dust with flour, if necessary
Once the dough is less than 1/4 of an inch thick, cut out your chosen cracker shapes using a pastry cutter or sharp knife. *Do not separate the crackers
Sprinkle parmesan, dill and fine sea salt over the crackers
Slide the sheet of parmesan onto a flat baking sheet
Bake in a 400 degree oven for 15-25 minutes or until the crackers are golden and crispy
Slide the parchment (with the crackers on top) onto a cooling rack to allow the crackers to cool
Store in an airtight container at room temperature