Let this slab pie cool completely, then freeze it for up to 2 months. Thaw it at room temperature and reheat it in a oven for 25 minutes. Or, to make a pie for 6 to 8 people, simply halve the recipe and make it in a pie plate.
The Best Classic Canadian Butter Tarts - there's a reason why we have a national obsession with these sweet, buttery, caramel-y tarts. I've sampled them in many places across the country and this thick pastry version is my favorite. Don't do the raisin debate, just leave them out if they are not your thing. Everyone should be able to enjoy them as they like them.