PREHEAT OVEN TO 350 F DEGREES
COMBINE COOKIE MIX (FOLLOW INSTRUCTIONS ADDING 1 EGG, AND 1/3 CUP SOFTENED BUTTER) WITH 1 8 OZ SOFTENED CREAM CHEESE, MIX WITH A WHISK OR WOODEN SPOON UNTIL FULLY COMBINED TOGETHER
TRANSFER TO A GREASED 8X8" BAKING DISH
BAKE FOR 20 MINUTES AND CHECK CENTER WITH A TOOTHPICK, IF BATTER IS STILL RAW ON TOOTHPICK, BAKE 5-10 MINUTES MORE UNTIL IT COMES OUT CLEAN IN THE CENTER
WHILE BARS ARE BAKING, WHIP SOFTENED CREAM CHEESE IN A STAND MIXER (OR USING A HAND MIXER) UNTIL FLUFFY AND SMOOTH WITH NO LUMPS
ADD IN FROSTING TUB AND WHIP TOGETHER UNTIL FLUFFY
ONCE BARS ARE BAKED, COOL DOWN BEFORE TOPPING WITH CREAM CHEESE FUNFETTI FROSTING