Place an oven rack in the middle position and preheat the oven to 350 degrees F. Line a 9X13-inch baking pan with foil or parchment paper and lightly grease the foil/parchment
Preheat oven to 325 degrees. Line a 10×10 pan with parchment that overhangs the edges. Mix the butter and graham crackers together and press into the bottom of the pan evenly
Preheat oven to 350. Line a 9x13 pan with foil and spray with vegetable oil spray. Set aside. In the bowl of a stand mixer fitted with the paddle attachment, beat cream cheese on medium speed for 3 minutes, until light, fluffy and smooth
Make the Crust. Preheat the oven to 375°. Line a 15-by-17-inch rimmed baking sheet with parchment paper. In a standing mixer fitted with the paddle attachment, beat the butter with the sugar at medium speed until light and fluffy, about 2 minutes