Preheat oven to 325°.
Finely chop macadamia nuts in a food processor. Add to a medium bowl. Finely chop the cookies in the food processor and add to the nuts. Mix in sugar and melted butter and stir until combined. Press in the bottom of a 9” springform pan. Set aside.
Beat cream cheese on low speed until fluffy using an electric mixer fitted with a paddle attachment. Add the sugar and mix on low until creamy. Add one egg at a time, mixing in between each addition. Add the flour, lemon juice, and vanilla and mix until combined. Add the sour cream and beat well.
Pour the mixture on top of the prepared crust. Bake for one hour and 15 minutes. Turn off the oven and prop open the oven door. Let the cheesecake sit for one hour. Remove from oven and cool completely. Chill 24 hours before serving.
Before serving, melt ¼ cup of hot fudge and pour over cheesecake. Top with more chopped macadamia nuts.