One of the main ingredients in a chocolate tart, apart from the chocolate is sugar. Another main ingredient is the flour required to make the pastry dough for the tart, with butter.

Cultured butter is butter which has had live bacteria added to it before churning which gives it a tart flavor. Culturing butter is more common in Europe than in the United States.

If you like it soft, then don't, if you like it hard, then do.

similar tarts are made in Scotland, though they are uncommon. There, they are related to the much more commontarte à la frangipane, that differs from the basic Canadian recipe only by the addition of ground almonds. But i don't no as to where the original butter tart is from!

it is called tart