Preheat oven to 400°F.

Cream together egg yolks, sugar and butter

Stir in flour.

Add one cup of evaporated milk, then one cup of whole milk and evaporated milk,a d three more cups of whole milk. Fold in beaten egg yolks.

Add flavor and rind. Stir to mix well.

Pour mixture into 9 inch pie pans.

Place in oven and lower heat to 350°f. Bake until pie shakes done.

This recipe makes 4 pies