Blueberry Buttermilk Pie

1 cup blueberries, frozen and thawed
Pie shell
4 tbsp. butter, softened (Steele uses Plugra)
½ cup buttermilk
¾ tsp. vanilla
3 large eggs
½ cup flour
⅛ tsp. salt
2 cups sugar

Preheat oven to 325 degrees. Pour blueberries into the prepared pie shell. Then, combine butter, buttermilk, vanilla, and eggs in a stand mixer or by hand until the butter is broken into nickel-sized chunks. Combine flour, salt, and sugar in a separate bowl, and then add to the wet ingredients. Stir the mixture and pour it over the blueberries. Bake for 50-60 minutes, or until golden brown and cooked through.

From Garden and Gun

Recipe is a little testy. Never seems to bake up the same. Hard to tell when it's done.