Blueberry Plum Pie

After many summers of moving and extended travel, my feet are staying (mostly) in one place this year. As a result, I was able to sign up for a summer CSA (community supported agriculture) share, after contemplating one for several years. CSAs are a way for consumers to buy locally grown produce directly from a farmer by purchasing "shares" of the harvest at the beginning of the season. The goal for the CSA was to introduce and teach me to cook regional and seasonal produce (or, more honestly, push me to learn how to cook in general). Each week, I pick up my CSA produce box from the local farmer's market. The contents are usually a surprise, containing whatever was ready to harvest from the farm the evening before.

Back in June, I marveled over the tender asparagus and fought my boyfriend for the soft, buttery lettuce (the  best of my entire life) from the first box. Midway through the summer, the CSA has consisted of just as many unfamiliar vegetables as those I recognize. I have learned how to roast turnips with potatoes, slice bok choy for stir fry, hide endless amounts of summer squash in tomato sauce, and embrace an unexpected love for kohlrabi.

Out of necessity, I started keeping a written tally of what needs to be eaten on the refrigerator door. At least I can finally say that I actually do eat my vegetables. 

At the farmer's market last week, I picked up 6 pints of blueberry "seconds" in addition to the CSA. Though many of the "seconds" were battered and broken, I sorted and gathered together enough blueberries for a pie. Since a handful of plums were already sitting on the kitchen counter, it seemed an opportune moment to pair these fruits together. I covered the fruit in pastry and let it bubble and sing in the oven.

After my first bite, I have nothing but praise for this dreamy flavor combination. Blueberries and plums are a  tour de force

Blueberry Plum Pie is a fruit-focused pastry with a burst of flavor. Fresh blueberries and sliced plums come together in a lattice-topped pie. A teaspoon of cinnamon is added to give the fruit a subtle warmth, which adds to the overall profile. Serve warm or chilled with a side of vanilla ice cream and a friend. 

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Blueberry Plum Pie

Yields 9-inch pie

1 double crust pie dough recipe
1 pound (450 grams) plums, pitted and sliced
1 pound (450 grams) fresh blueberries
1 cup (200 grams) granulated sugar
1/2 cup (60 grams) all-purpose flour
1 teaspoon cinnamon
2 tablespoons lemon juice
Egg wash (1 large egg + 1 tablespoon water, whisked), for brushing
Granulated sugar, for sprinkling

Preheat oven to 425 degrees F (220 degrees C).

In a large mixing bowl, gently stir together the sliced plums, blueberries, sugar, flour, cinnamon, and lemon juice until the berries are evenly coated. Set aside.

Form the pie dough into a disk and divide it into a 60/40 ratio (if using store-bought crust, do not worry about this step). On a lightly floured surface, roll out the larger section of dough into a 14-inch round circle. Carefully transfer it to a 9-inch pie pan and trim the excess pie dough to create a 1-inch overhang. Tuck the dough overhang under itself so it is even with the pie dish. Fill the pie crust with the berry mixture.

On a lightly floured surface, roll out the smaller section of pie dough. Using a pizza cutter and a ruler, cut out 3/4-inch wide strips of dough. Layer the strips over the top of the pie in a decorative fashion and trim so they are even with the edge of the pie pan. Using a fork, press down along the edge to seal the bottom and top layer together.

Using a pastry brush, brush the top of the pie crust with egg wash and sprinkle granulated sugar over the pie crust. Bake the pie for 15 minutes at 425 degrees F (220 degrees C). Then, lower the oven temperature to 375 degrees F (190 degrees C). If necessary, cover the edges of the pie crust with aluminum foil to prevent further browning. Bake an additional 50-65 minutes, or until the lattice and crust are evenly browned. 

For perfect slices, cool for at least 3-5 hours (or overnight). Serve with whipped cream or ice cream, if desired.

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Kristin Rosenau

Photographer, writer, and baker of all things sweet.

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