Blueberry Oatmeal Squares

This recipe was in Canadian Living last year.  I modified it a bit, primarily less sugar!  this is the most delicious square ever, better than the Starbucks one.


    2-1/2 cups rolled oats , (not instant)
    1-1/4 cups all-purpose flour
    1 tbsp grated orange rind
    1/4 tsp salt
    1 cup cold butter , cubed
    1/2 cup packed brown sugar
    3 cups fresh blueberries
    1/3 cup granulated sugar
    4 tsp cornstarch
Filling: In saucepan, bring blueberries, sugar and orange juice to boil; reduce heat and simmer until tender, about 10 minutes. Whisk cornstarch with 2 tbsp (25 mL) water; whisk into blueberries and boil, stirring, until thickened, about 1 minute. Place plastic wrap directly on surface; refrigerate until cooled, about 1 hour.

In large bowl, whisk together oats, flour, sugar, orange rind and salt ; with pastry blender, cut in butter until in coarse crumbs. Press half into 8-inch (2 L) square parchment paper–lined metal cake pan; spread with blueberry filling. Sprinkle with remaining oat mixture, pressing lightly.

Bake in centre of 350°F (180°C) oven until light golden, about 45 minutes. Let cool on rack before cutting into squares. (Make-ahead: Cover and refrigerate for up to 2 days or overwrap with heavy-duty foil and freeze for up to 2 weeks.)