Butter Tart Filling:Use your favourite pastry recipe for the shells or cheat like I do and buy the frozen tart shells 1-cup packed brown sugar 1/2-cup corn syrup 6-tbsp butter 2-beaten eggs 2-tsp vanilla 1/4-tsp salt 2-tsp vinegar 1-cup raisins Combine brown sugar, corn syrup, and butterAdd eggs, vanilla, salt, vinegar, and raisinsMix well Fill the pastry shells no more than 2/3 full Bake at 425* for 15-20 minutes