Step 1

In a medium saucepan, melt butter over medium heat. Continue to cook until lightly browned, stirring occasionally, approximately 10 minutes. Add brown sugar to butter and cook until sugar is completely melted and a paste is formed.

Step 2

Combine evaporated milk and regular milk and pour into the butter/brown sugar mixture. Bring to a simmer and stir until it is smooth and the sugar is completely dissolved.

Step 3

In a separate bowl, combine cornstarch, flour, and salt. Pour 1/ 2 cup of the milk/butter/sugar mixture into the cornstarch mixture and whisk until smooth. Pour the smooth cornstarch mixture back into saucepan, stirring constantly. Cook for approximately one minute, until just thickened (cooking the cornstarch much longer can actually cause it to lose its thickening ability).

Step 4

Stream 1/2 cup hot milk/butter/sugar mixture into the egg yolks, stirring constantly (this is called tempering; it prevents the yolks from curdling in the heat). Pour this mix back into the saucepan. Cook for approximately 30 seconds to one minute, and then remove from heat. Stir in whiskey. Allow to cool until warm, about 10 to 15 minutes. Strain filling through a fine mesh sieve and then pour into cooked piecrust.

Step 5

Press a piece of plastic wrap directly on the surface of the pudding in order to prevent a skin from forming. Chill overnight, or until firm.

Step 6

In a medium-sized bowl, whip the heavy cream with an electric mixer until foamy and starting to thicken. Add confectioners' sugar and vanilla and continue to beat until soft peaks are just formed.

Step 7

If serving whole pie, top with whipped cream and slice. If serving just a few pieces, slice and serve with a dollop of whipped cream.