Apple-Jack Tart with Ginger Custard Sauce

This is a delicious tart with an interesting flavor note of dry Jack (or Parmesan) cheese added to the streusel topping. The idea is based on the classic New England and Midwest tradition of serving warm apple pie with a slice of sharp Cheddar cheese on top. In this recipe I haven’t blind-baked the shell, but you could do so, especially if you were going to make the tart ahead to serve later. Prebaking the shell would help keep it from getting too soggy. If you don’t have time to make the c