Prepare a pie crust and place it in a 9" pie pan or a 10" tart pan. Blind bake* the crust until golden brown.
Cool completely.
Melt butter in a heavy skillet over medium heat. Stir in pecans and cook until nuts are golden brown, about 6 minutes, stirring constantly. The nuts can burn very quickly, so make sure that you watch carefully. Cool at room temperature for 1 hour.
In small heavy saucepan, melt vanilla milk chips in milk over low heat. Cool at room temperature for 1 hour too.
In large bowl, beat whipping cream with powdered sugar and vanilla until stiff peaks form. Fold in cooled pecans and cooled vanilla milk chip mixture. Spoon into cooled crust and refrigerate at least 4 hours before serving. May also be frozen and served frozen. Serves 8-10
*Definition: Blind bake means to bake a pie crust without a filling. There are several techniques used to ensure that the pie crust holds it shape when baked empty. Pie weights can be placed in the shell to keep it from puffing. The shell can be lined with foil and dried beans or peas. Pricking the crust with a fork before baking also helps the crust keep its shape.