Long before refrigerators we had ice boxes and ice box cookies were today's break and bake cookies, early ancestor. Make these at least 2 days ahead of time. Use only BLACK WALNUTS. This is what my husband refers to as a dunkin cookie. You can soften them up by placing a slice of bread in the container with them. The first time he saw me dunking these in milk at work, he asked if I had any Dutch in my background. There's a lot of Pennsylvania Dutch on both sides....he said he'd never met any one who dunked their cookies who didn't have a least a little Dutch in them.