Crust: 24 chocolate sandwich cookies (such as Oreos) 4 tablespoons unsalted butter, melted Filling: 3 8-oz. packages cream cheese, at room temperature 3/4 cup sugar 3 large eggs, at room temperature 2 teaspoons vanilla extract 1 teaspoon lemon juice 1 tablespoon cornstarch 3 regular-size Snickers bars, cut into 1/4-inch slices 1/4 cup caramel sauce, optional 1/4 cup chopped roasted and salted peanuts, optional