Heat oven to 350° F.

Beat eggs until frothy.

Gradually beat in milk, maple syrup, and salt.

Spread shortening in a thin layer over the bottom of the pie shell.

Pour custard into the pie shell and place in the center of the oven.

Bake 40 to 45 minutes or until a knife inserted in the center comes out clean.

Cool pie to room temperature on a wire rack.

Cover and refrigerate at least 2 hours before cutting and serving.