Lemon Meringue Bars

Preheat oven to 350ºF. Spray a 13×9 inch baking dish with nonstick cooking spray.

For the crust:
To make the crust, combine flour, sugar and salt in the bowl of a food processor. Pulse in butter until butter is well distributed and the mixture resembles moist sand. Pour into a 9×13-inch baking dish and spread evenly. Press down to create a firm, even layer.

Bake for 20 minutes or until edges are lightly browned.

For the filling:
While crust is cooking, prepare the filling. Combine all filling ingredients in a large bowl and whisk together until smooth (this can also be done in a food processor). When crust is done, pour filling into the hot pan with the crust and return to the oven.

Bake for about 17-20 minutes, until filling is set. Edges may be lightly browned, depending on the pan.

For the meringue:
While filling is baking and getting close to finished, prepare the meringue. Beat egg whites intil foamy. Add sugar and cream of tartar. Continue beating on high speed until soft peaks form. Spread evenly onto hot, cooked filling and return pan to the oven. Bake for 8-10 minutes, until lightly browned at the peaks.

Cool completely on a wire rack before slicing.