Milwaukee is famous for frozen custard! When we came out of swim practice we noticed that the flavor of the day was key lime pie at the custard place on the way home. It sounded good, but limes were in the fruit bowl on our counter, so we stopped on the way home for sweetened condensed milk and graham crackers. I couldn't remember what else was needed for this recipe.
I did search and found a few variations, but I had to find a recipe matching my ingredients...remember, I was trying to NOT go to the grocery store again. I cut the sugar to 1 T or so in the crust since the pie sweetness would be strong. I cut the butter in the crust to 2-3T or so.
Yum....sweet and limey.