Preheat the oven to 350*. Spray a 9×13 baking dish with baking spray.

Prepare the cake as directed on the cake box. After baking, allow the cake to cool until it is still just slightly warm to the touch.

Using the end handle of a silicone spoon or spatula or a wooden handled spatula, poke holes in the cake. Spread the holes approximately a ½ inch apart.

In a heat safe bowl, add the 5 tablespoons of butter, light brown sugar, ground cinnamon, vanilla extract and sweetened condensed milk. Whisk until all the ingredients are combined. Place the bowl in the microwave and heat on high for 1 min, remove and stir. Heat for another minute and stir. Stir and make sure all brown sugar clumps have been removed. Return to the microwave for 30 second increments until all lumps are removed.

Carefully ladle the mixture evenly over the top of the cake allowing it to puddle in the poke holes.

Using a stand mixer, or a handheld mixer, cream the butter and cream cheese together until fully incorporated.

Add the clear vanilla flavoring, half and half and the powdered sugar a ½ cup at a time, continue mixing until the frosting is smooth and slightly fluffy.

Spoon all of the frosting onto the cake and smooth it out. Cake is ready to serve immediately or is also delicious chilled.