Preheat oven to 350F. Line a 9-inch square baking pan with parchment paper and set aside.
In a large bowl, beat brown sugar and butter until smooth and creamy. Beat in molasses, egg, and vanilla until smooth.
In a separate medium bowl, combine flour, baking soda, salt, ginger, cinnamon, and cloves. Fold flour mixture into butter mixture until dough is smooth.
Spread dough evenly in prepared pan. Bake bars at 350F 20-25 minutes (middle will be a bit soft - this is ok) Cool bars completely on a wire cooling rack.
Cream Cheese Frosting
In a large bowl, beat cream cheese and butter together until smooth and creamy. Beat in vanilla and powdered sugar until evenly combined. Store frosting in refrigerator until ready to use.
Once bars are cooled, use parchment paper to remove from pan. Frost with cream cheese frosting and top with sprinkles if desired. Cut into squares and serve. Enjoy!
Notes
Storing InstructionsStore bars in refrigerator up to 3 days.