Heat oven to 325℉
Grease and flour bundt cake pan
Combine pudding mix, flour, cornstarch, baking powder, cinnamon, nutmeg. Set aside.
In a mixing bowl, mix together butter and sugar.
Add in eggs and mix until well blended.
Mix in eggnog and vanilla.
Mix in half of the dry ingredients mix. Once blended in, combine the remaining mixture. Mix thoroughly.
Spoon mix into bundt pan ¾ of the way full.
Place pan in the heated oven and bake 55-60 minutes or until a toothpick inserted in the center comes out clean.
Remove from the oven and allow the cake to cool for ten minutes.
In a small saucepan, combine butter and brown sugar for drizzle.
Once melted, whisk in rum and cream.
Whisk until it comes to a boil and then remove it from the heat.
Allow it to set for 5 minutes.
Transfer the cake to a cake plate by placing the plate at top of the cake pan and turning over.
Drizzle warm cake with rum drizzle using a spoon.
Enjoy!