Ontario-Style Butter Tarts with Raisins
Butter tarts are strongly associated with Ontario and are now baked across Canada. A recipe for “Filling for Tarts” appeared in the 1900 Royal Victoria Cook Book in Barrie, although that record does not establish where the broader tradition began. Early and modern versions differ: some use currants or raisins, some omit fruit, and syrups and preferred filling textures vary from kitchen to kitchen.
This home version uses raisins, brown sugar and light corn syrup in a flaky all-butter shell. The syrup helps keep the filling soft, while a little vinegar balances its sweetness. The filling should be glossy and tender, not liquid; it firms as it cools. Chilling the pastry first and avoiding stretched dough help the shells hold their shape.