Pre-heat oven to 350ºF.
Make the crust: Spray a 9" springform pan with cooking spray. Evenly press pre-made sugar cookie dough into pan, about 1/4" thich. Bake for approximately 10 minutes, or until the edges are lightly golden. Set aside to cool.
Make the lemon curd: Whisk eggs and egg yolks in medium bowl. Set aside. Melt butter in a saucepan. Whisk in sugar, lemon juice, lemon peel, and salt. Gradually add eggs. Whisk until thick, about 8 minutes. Set aside and allow to cool completely.
Assemble: Spread lemon curd on top of the crust. Carefully spoon ice cream on top of curd. Add one last layer of curd. Cover, freeze overnight, and enjoy.