A no-bake, creamy and tangy Lemon Icebox Cake with layers of lemon shortbread cookies soaked in milk and whipped cream cheese filling infused with fresh lemon zest. This refreshing dessert is perfect for summer and requires chilling to allow flavors to meld and cookies to soften.
Use room temperature cream cheese for a smooth filling without lumps., Keep heavy cream cold before whipping to achieve a light, fluffy texture., Dip cookies quickly to avoid sogginess., Use parchment paper overhang for easy removal and slicing., Heat and dry knife between cuts for clean slices., Cool Whip can be substituted for heavy cream for a lighter, sweeter filling (reduce or omit heavy cream accordingly)., The cake can be made ahead and refrigerated overnight for best results., Store covered in the refrigerator for 1 to 2 days for optimal texture., Freeze wrapped tightly in plastic wrap and foil for up to 1 month; thaw overnight in the fridge before serving., Variations include using vanilla wafers or graham crackers instead of lemon shortbread cookies, adding lemon juice or curd for extra tang, and garnishing with fresh mint or berries.