Mix together all ingredients except for the pie crust in a medium-sized bowl.
Using your favorite pie crust, roll out just a little bigger than 12-inches. Place it in your deep dish pie plate and press it in.
Pour in your filling into pie crust and place slices of butter over the berries.
Top with the remaining crust. If you want to keep it super simple, just use a fork to crimp the top and bottom crust together. Trim off any excess from around the outside of the pie plate, then cut three slits in the middle of the crust to create vents for the air. If you want to get a little fancier, you could also lattice this top crust.
Bake at 450 degrees for 15 minutes.
Turn oven to 350 and bake an additional 30-40 minutes, or until crust is golden brown.