Combine Stevia In The Raw and the cornstarch in a medium saucepan.
Thoroughly mix the milk and egg yolks.
Place saucepan over a medium flame. Gradually add the milk mixture to the Stevia mixture, whisking constantly. Bring the mixture to a boil, then cook for 1 minute, stirring constantly. Remove from heat.
Combine pumpkin, vanilla, and spices in a bowl. Slowly add pumpkin mixture to milk mixture, whisking constantly. Place saucepan over low heat and cook for 3 minutes, stirring constantly.
Pour pudding into one large bowl and cover surface of pudding with plastic wrap. Chill.