Onion Tart

On the Inspiration of Zwiebelkuchen

This tart is inspired by German Zwiebelkuchen; if you’re fond of caraway seed, add ½ teaspoon or more to the filling. The custard filling isn’t harmed by overcooking, and the flavor benefits when it’s well-colored in the oven.

dough to make one 9- to 10-inch (24-cm) flaky crust

1 or 2 onions totaling 250 to 300 gr (2/3 pound), chopped, to make about 250 m…