Saskatoon (Serviceberry) Rhubarb Pie

1 . Stage

Preheat the oven to 400 degrees F (200 degrees C). Press two of the pie crusts into the bottom and up the sides of two 8 inch pie plates.

2 . Stage

In a microwave-safe dish, combine the rhubarb and 1/2 cup of sugar. Heat at full power in the microwave until rhubarb is soft and juice is pooling in the bottom of the dish, 4 to 5 minutes. Drain off the juice into a measuring cup and add enough water to make 2 cups. Dissolve the cornstarch in the liquid.

3 . Stage

In a saucepan, stir together the 2 cups of liquid, lemon juice and remaining 1 cup of sugar. Add the saskatoon berries and rhubarb; cook over medium-high heat until thick and bubbling, about 5 minutes. Pour into the two pie crusts. Top with the remaining crusts and cut holes in the top to vent steam. Pinch the edges together to seal.

4 . Stage

Bake for 15 minutes in the preheated oven, then reduce the temperature to 350 degrees F (175 degrees C). Bake until crust is golden brown and filling is bubbling, about 30 more minutes.