1. Preheat oven to 375°F (190°C). 2. Prepare a 9x9-inch (22x22cm) pan with foil and spray with canola oil. Set aside. 3. In a bowl, combine flour, brown sugar, salt, lemon juice and canola oil until well combined. Press into the bottom of the prepared pan. Bake until light brown, about 20 to 24 minutes. Meanwhile prepare the filling. 4. In a medium bowl, whisk egg yolks, sugar, lemon juice, canola oil, lemon and orange zest. Pour over baked crust. Place back into oven for 12 to 15 minutes or until set. 5. Cool completely. Using a sharp knife cut into squares or rectangles, dust with confectioners sugar if desired.
* Recipe courtesy of George Geary, CCP and CanolaInfo.