Butter Tarts

The following recipe was given to me by my Mom. I think she got it from her Mother (or maybe my Dad's Mother). I am not entirely sure.
Since I am celiac and don't eat gluten, I make these tarts in store-bought pastry shells. So - while the filling is gluten-free, the shells are not. You can use any type of pastry to make them, and if you are looking at gluten-free pastry, Kinnik Kinnik makes a good mix. http://consumer.kinnikinnick.com/index.cfm/fuseaction/products.home/productcategoryid/5

1/2 cup of butter, melted
1 1/3 cups raisins
1/2 - 3/4 cup walnuts (sometimes I use other nuts)
2 eggs
2 cups brown sugar
2 tablespoons white vinegar
1 teaspoon vanilla
1 tablespoon lemon juice

Mix this all together and put in shells. Should fill about 30 shells.
Cook at 450 for 10 minutes, then 350 for 20-25 minutes

Enjoy!