Butter tarts are a Canadian tradition. Waaaay back in the 1970s, a national contest here in Canada concluded that these butter tarts, originating from Wilkie's Bakery in Orillia, Ontario, were the best. I certainly think so and it's the only recipe I use. Add a sprinkle of toasted walnuts when you add the raisins, if you wish, or use only walnuts if you don't like raisins.
- Prepare muffin pans by rolling out pie dough and cutting 4-inch (approx) circles; fit dough circles into muffin cups; set aside in fridge until ready to fill.
- In a small bowl, place raisins and cover with hot tap water; let stand on the counter for 30 minutes.
- In a large bowl, using a wooden spoon, mix together the soft butter, brown sugar, salt and corn syrup; stir well until sugar is dissolved and butter is creamed.
- Add egg and vanilla and mix well.
- Drain raisins.
- Retrieve tart shells and divide raisins equally into all shells; then divide butter mixture into all tarts.
- Bake at 400F for 15-20 minutes; filling will be lightly browned but still bubbling.
- Canadians fall into two camps about butter tarts and are quite loyal to their favourite type: runny or firm.
- I like runny-- the type that dribbles when you bite into one; if you like firm, bake them for the full 20 minutes, even adding another minute or two if you wish.
- Let cooked butter tarts cool in pans for 10 minutes after removing from oven; then remove and place on racks until completely cool.