Advisable for the cake & caramel sauce to be stored in the fridge.
The cake last between 3-5 days in fridge, last 1 day in room temperature. The caramel sauce could last between 7 to 12 days if stored in the fridge but last between 5-7 days in room temperature. Advisable for the cake & caramel sauce to be stored in the fridge.
You could pour the caramel sauce on top of the whole cake or slices. Then, crush the pretzels, sprinkle it on top. Ready to enjoy your cake.