What raises this cheesecake above all others is the inspired addition of three ingredients: Bailey’s Irish Cream to impart a silky nip, and orange and lemon zest to lend a tang.

Graham Cracker Crust

2 cups graham cracker crumbs
1/4 cup sugar
1/4 cup butter (room temperature)

Combine ingredients in a food processor or mixer until they can be formed into a ball. Press onto sides and bottom of an ungreased 9-inch pie pan or springform pan.

Cheesecake Filling

2 cups (16 ounces) cream cheese (room temperature)
2/3 cup sugar
2 eggs
2 egg yolks
1/4 cup whipping cream
1/4 cup sour cream
2 1/2 tablespoons vanilla
Zest of 1/2 lemon
Zest of 1/2 orange
1 tablespoon Bailey’s Irish Cream or other liqueur

Preheat oven to 350 degrees. Combine cream cheese, sugar, eggs, and egg yolks in a food processor or mixer until smooth (5 minutes). Add remaining ingredients and mix thoroughly. Pour into crust and bake approximately 1 hour or until a toothpick inserted in center comes out clean.

Sour Cream Topping

2 cups (16 ounces) good quality, thick sour cream
1/4 cup sugar

Mix ingredients with a wire whisk in a chilled bowl. Spread on cooled cheesecake. Chill cheesecake at least 5 hours before serving.