Sugar pie is a dessert in northern French and Belgian cuisine, where it is called tarte au sucre.
It is also popular in Canada.
Various type of tarte au sucre are made.
Some are a leavened dough topped with beet sugar or brown sugar, others have a crust containing a homogeneous sugar mixture which is similar to caramel after baking.
The French Canadian version of the dessert sometimes uses maple syrup.