In a trifle bowl or small glass, add a layer of the chopped Twix bars. Then use a pastry bag (or a Ziplock bag with the corner tip cut out) to pipe in a layer of caramel mouse. Then do the same with a layer of chocolate fudge sauce. Then repeat! Finish of with a layer of whipped cream, and top with the remaining Twix bars. Serve immediately or refrigerate up to 8 hours.

Briefly stir together granulated sugar and water in a small saucepan, then bring to a boil over medium-high heat. Continue cooking, without stirring, until mixture turns dark amber in color, about 6 to 7 minutes. (Keep an eye on it, though, because it goes from clear to amber very quickly!)

Remove from heat and slowly add in cream (just start with a tablespoon or two), stirring with a wooden spoon until completely smooth. (Be careful, as the mixture will definitely bubble up and possibly splatter a bit as you add in the cream.) Stir in vanilla and salt. Set aside until it reaches room temperature, or refrigerate to speed up the process.

In the bowl of a stand mixer, beat PHILADELPHIA Cream Cheese on medium-high speed for 1 minute until very smooth. Add in the room-temperature caramel and powdered sugar, and beat on medium-low speed until combined. If the mousse is too thick, add in a tablespoon or two of heavy cream. Then increase speed to medium-high and beat for another 2 minutes until light and fluffy. Set aside.