Tarts are more than just pies without tops. They can have a variety of doughs from flaky and crunchy to soft and rich. Common doughs include pate brisee (similar to pie dough), short doughs, pasta frolla, and brioche. Assembly can be either with an unbaked tart shell filled after or a baked "to be baked" shell with filling added before final baking. Key steps include rolling out the dough, pressing it into the pan, blind baking, then filling and finishing the tart. Flavors range from savory to sweet utilizing combinations of fruits, cheeses, chocolate, nuts and custards.