B.C. blueberry lattice top pie

A beautiful pie with B.C. blueberries that's great any time of the year

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Is there a better gift to bring to someone's house than pie? This Thanksgiving, add this lattice top blueberry pie to your table. B.C. blueberries are picked at their peak and are great fresh or frozen, so this pie will taste the same, bursting with berry flavour, any time of the year. 

Dough

2½ cups all-purpose unbleached flour, plus ¼ cup for rolling
1 tbsp granulated sugar
1 tsp salt
1 cup cold unsalted butter, cubed
1/4 cup cold sour cream
4 tbsp ice water
1 tbsp vinegar

In a large bowl, combine flour, sugar and salt. Use a pastry cutter to cut in cold butter until you have a coarse, crumbly pea size mixture. (Alternatively, pulse in a food processor.)

In a separate bowl, mix sour cream, ice water and vinegar. Add sour cream mixture to the flour and butter mixture one tablespoon at a time. Finish mixing with hands to until it just comes together.

Form into 2 discs, one slightly larger than the other. Seal well and chill for at least an hour.

Filling

5 cups fresh or frozen B.C. blueberries, do not thaw if using frozen
1/2 cup granulated sugar
3 tbsp corn starch
3 tbsp fresh lemon juice
1 tsp cinnamon

Prepare the blueberry filling by sprinkling the blueberries with sugar, corn starch, lemon juice and cinnamon and toss to combine.

Assembly

1 tbsp cold unsalted butter, cut into small cubes
1 large egg white, whisked
1 tbsp coarse sugar

Pre-heat oven to 425°F with rack positioned in the centre.

Working one disc of dough at a time, remove dough from refrigerator 10 minutes before rolling. On a generously-floured surface, roll out the larger disc of dough to 1/8” thickness and 2” larger than the pie dish.

Transfer and fit into the pie dish leaving 1” overhang. Refrigerate for 15 minutes.

Fill the chilled pie shell with the blueberry mixture and dot with cubes of butter. Refrigerate while preparing the remaining dough.

Roll out the second disc of dough to 1/8” thickness and 14” square. Cut twelve- ¾ ” strips.

Lay six strips horizontally, evenly spaced and parallel to one another over the filled pie.

Fold back every second strip of dough and place a strip of dough vertically over the remaining strips of dough and filling. Place back the horizontal strips of dough over top the vertical strip of dough. Repeat by alternating with the other strips of dough.

Trim and fold the edges of the dough around edge of pie. Brush with the egg wash. Sprinkle with coarse sugar.

Bake in the the pre-heated oven for 20 minutes at 425°F, then reduce temperature to 350°F and bake for another 45 to 50 minutes until bubbling and golden brown.

Allow to rest at room temperature for at least 2 hours before serving. Serve with ice cream.

Yield:
1 pie
Cook Time:
1 hr 10 mins