Add the raisins to a small saucepan and cover with water. Boil for about 5 minutes. Drain the water and set the raisins aside.
1 c. raisins
Heat the milk in a large saucepan to the boiling point.
2 1/4 c. milk
In a separate bowl, mix the brown sugar, cornstarch, and salt. Add the beaten eggs and whisk.
3/4 c. brown sugar, 4 Tbsp. cornstarch or clear jel, 1/2 tsp. salt, 2 large eggs
Add about a cup of the hot milk to the sugar/egg mixture to temper it.
Slowly, while whisking, pour the sugar/egg mixture into the hot milk and whisk constantly until it comes to a boil. (Be careful because when it comes to a boil it will bubble and splatter.)
Remove from the heat and add the cooked raisins, butter, and vanilla. Mix and set aside to cool. (To prevent a skin from forming on the top, you can place a piece of plastic wrap on top of the pudding.)
1 Tbsp. butter, 1 tsp. vanilla extract
Once the pie mixture has cooled to room temperature, pour it into the baked pie shell and refrigerate for a couple of hours.
1 pre-baked 9" pie crust
To make whipped cream:
Add whipping cream, sugar, and vanilla to a mixing bowl and whip it until it is thickened.
1 - 1 1/2 c. heavy whipping cream, 2 Tbsp. sugar, 1 1/2 tsp. vanilla extract
Spread over the top of the chilled pie filling before serving.
Keep the pie refrigerated with a plastic wrap covering the filling. (I don't like to cover pies tightly, as the crust will get soggy faster.)
Notes
Feel free to add 1/2 tsp. cinnamon and 1/8 tsp. ground cloves to the pie filling, if desired.To make this pie ahead, you can bake the crust and make the filling a day or two in advance. Lightly cover the prebaked crust with a tea towel. Place the creamed mixture into an airtight container and refrigerate it. Assemble the pie just a little while before serving.Thawed Cool Whip can be used instead of whipped cream.Cream pies are the best when eaten within two or three days after being assembled.*Nutrition is approximate.