01 -
Crush graham crackers, combine with melted butter and sugar, and press into a springform pan.
02 -
Beat cream cheese and sugar until smooth and creamy. This is where you'll get a good arm workout!
03 -
Beat in eggs one at a time, then stir in Irish cream and vanilla. Don't overmix!
04 -
Gently fold in sour cream until just combined. Be gentle, it's a delicate step.
05 -
Bake at 350°F (175°C) for 50-60 minutes, or until set around the edges but slightly jiggly in the center.
06 -
Let cool completely in the oven with the door ajar, then refrigerate for at least 4 hours, or preferably overnight.