Let's start by preheating the oven to 425 degrees. Once that is done, place one pie crust in a 9″ pie dish. Trim and fold edges over, and crimp, pinch, or flute around the entire edge.
Now, in a large bowl, stir together your blackberries, lemon juice, sugar, flour until well combined.
Next, transfer the combined blackberry mixture into pie crust in dish, leaving any excess liquid in the bowl.
Now, place the cold butter pieces on top. Using house-hold items, or any items you wish to design with, create a variety of your favorite pie designs out of the trim or the second pie dough and place on trim.
Next, we'll bake at 425 degrees for 15 minutes. After 15 minutes, cover trim with tinfoil to keep the edges from burning and lower temperature to 375 degrees.
Allow to bake for 45 – 50 more minutes, or until done the crust is golden. Let it cool and enjoy!