Preheat the oven to 375˚ and line an 8×8 square baking pan with parchment and set aside.
To make the crust:
Combine chocolate graham cracker crumbs and melted butter in a small bowl. Pour into prepared pan and press into pan. Bake in preheated oven for 6 minutes.
To make the filling:
In a medium saucepan, place 8 tablespoons butter and 2 ounces unsweetened chocolate. Heat over low heat and stir until melted. Remove from heat. Stir in flour, salt, sugar, Kerrygold® Superior Irish Cream Liqueur, and corn syrup. Add eggs one at a time stirring well after each addition.
Pour into prepared crust and bake for 25-30 minutes or until tester comes out clean.
To make the frosting:
In a medium glass bowl combine 4 ounces softened cream cheese and powdered sugar and mix until light and fluffy, mix in Kerrygold Irish Cream Liqueur and set aside. In another bowl beat heavy whipping cream until soft peaks form. Spoon the whipped cream into cream cheese mixture and beat until combined.
Cut into squares and serve.