Preheat the oven to 350 degrees. Spray a 9×13 pan with cooking spray. In a food processor, put the dry ingredients in the bowl and pulse. Add the butter and pulse until it turns into the size of peas. Press the crust into the bottom of the pan. Bake the crust for 20 minutes.

Let the crust cool a bit and start on the filling.

Put all of the filling ingredients in the bowl of the food processor and process until smooth. Right before you are ready to pour it over the crust, add the baking powder. Give it one more whirl and you can pour it in. Pour it gently on top of the crust or the crust can break.

Bake the lemon bars for another 25 minutes or until the lemon filling is set.

Cut into squares and share with a friend.