Many famous pastry chefs have made a name for themselves by adding fun and surprising ingredients in their baked goods. You can do the same with boxed mixes to make them taste better and put your own little spin on them. For example, whip up some boxed brownie mix and pour half into a greased pan. Then, add cream-filled chocolate sandwich cookies (like Oreos), peanut butter, pretzels or even potato chips, then top with the rest of the brownie mix. Top a cake with fresh fruit or crumble up your favorite snacks such as cookies or even cereal, and sprinkle them in between layers of cake. The possibilities are endless! Explore pairing the sweet desserts with salty ingredients for interesting flavor combinations.