* I do not recommend chopping the pistachios for the filling in a food processor as some grind up too quickly while others are still whole (trust me on this). Roughly chop them by hand.
* Before squeezing the lemon, heat it in a microwave for about 20 seconds and then rub it back and forth on the counter top. This easy two-step process results in more juice per piece of fruit.
* Since these bars have eggs in them, it is not recommended that they sit at room temperature for more than a few hours.