"Hello Dolly" Magic Cookie Bars Recipe

My husband seldom asks me to make a specific dish or dessert. Today, is a mild summer day, so I had no problem with baking. I'm reading that other parts of California are experiencing triple-digit temperatures. Not on the Central Coast of California! Even though I live in the sunbelt, I doubt the temperatures have gone any higher than 72 degrees. I asked my husband what treat he'd like for his lunch box. "Hello Dollies", he replied, with hope in his voice. This bar cookie is a classic-- otherwise known as Magic Cookie Bars, from Eagle Brand. I don't know where his father got the name "Hello Dollies"-- it must be a Missouri version? So, I scoured the pantry, and I had one can of condensed milk on hand. I keep walnuts in the…