Preheat oven to 425 degrees, and line a 9 inch deep dish pie plate with a pie crust.
Lay chopped shallots in the crust. Top with the chopped ham. Sprinkle with shredded cheese.
Whisk together eggs and Half & Half, whisk in the salt, sugar and chives. Pour over the top of the cheese.
Bake for 15 minutes. Reduce oven to 300 degrees and bake for 30 minutes more.
Let sit for 5 minutes before slicing.
Notes
Whether to prebake or not is up to you. If you want a crisper flaky crust, then blind baking the pie crust is a good idea. Store the quiche in an airtight container or wrap it in aluminum foil or plastic wrap and place it in the fridge for 3-4 days or the freezer for 3 months. Thaw in the fridge overnight and reheat in the oven.