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                            Home > Recipes > No-bake desserts

    Lemon Mousse Cookie Cake

    By Daniela Lambova · Published: Jan 26, 2018 · Updated: Oct 22, 2023 · Leave a Comment

    Jump to Recipe
    No Bake Cookie Cake with Lemon Mousse - delicious cocoa biscuits covered with flavourful lemon frosting - find the recipe at daniscookings.com

    The perfect delicious no-bake cookie cake with lemon mousse: easy to make, tasty, perfect for special occasions or for every day!

    No Bake Cookie Cake with Lemon Mousse - delicious cocoa biscuits covered with flavourful lemon frosting - find the recipe at daniscookings.com

    About the recipe

    This recipe resembles a classic Icebox cake with Nabisco Chocolate Wafers and a delicious lemon mascarpone mousse.

    You can, however, use different kind of cookies or graham crackers for it, which I will list below.

    This dessert is moist, soft, tasty and with refreshing lemony taste. It is also quick and easy to prepare!

    It is quite similar to the Quick Nutella and Mascarpone Biscuit Cake and to the Easy Icebox Cake with Dulce de Leche, we just have a different icing here.

    No Bake Cookie Cake with Lemon Mousse - delicious cocoa biscuits covered with flavourful lemon frosting - find the recipe at daniscookings.com

    Recipe ingredients

    You need just a few simple ingredients for this recipe:

    • ¾ cup/ 150 g sugar
    • 1 large untreated lemon: juice and zest
    • 6 egg yolks
    • 12,3 oz / 350 g chocolate graham crackers, cookies or Nabisco wafers: see options below
    • 1 cup/ 250 g mascarpone cheese
    • ⅞ cup / 200 g heavy whipping cream
    • chocolate sprinkles, for decoration
    No Bake Cookie Cake with Lemon Mousse - delicious cocoa biscuits covered with flavourful lemon frosting - find the recipe at daniscookings.com

    Nabisco chocolate wafers substitute

    As every other classic icebox cake, the first choice for this one would be the Nabisco Famous chocolate wafers. But given the fact that they have been discontinued, here are a few other options that can make this cake equally good:

    • Chocolate Graham Crackers - possibly the best replacement here
    • Oreo thins
    • Chocolate Shortbread Cookies
    • Any other kind of plain chocolate cookies

    You can also use plain cookies or regular graham crackers: you don't necessarily need the chocolate taste, even though I highly recommend it for this recipe.

    No Bake Cookie Cake with Lemon Mousse - delicious cocoa biscuits covered with flavourful lemon frosting - find the recipe at daniscookings.comPreparation summary

    • First you need to prepare the lemon mixture in a pan on the stove by combining. It is similar to Lemon Curd but you will use the 6 yolks here, mixed with the lemon juice and zest and the sugar.
    • When the prepared lemon mixture cools down, combine it with the mascarpone. Add the whipped cream at the end. This is your frosting.
    • From here it is just arranging cookies or graham crackers on the bottom of a pan and spreading frosting on top - easy!
    • Refrigerate the no-bake cake for 6-8 hours before serving it. This would allow the tastes to blend and the cookies to absorb the moisture.

    No Bake Cookie Cake with Lemon Mousse - delicious cocoa biscuits covered with flavourful lemon frosting - find the recipe at daniscookings.comVariations

    This cake is quite versatile. You can substitute ingredients easily and make it your way. here are some examples:

    • Use plain cookies or graham crackers, without cocoa
    • Prepare my Easy Lemon Curd instead of the recipe one: this is an option if you don't want to leave egg whites unused.
    • Use rainbow sprinkles to make a Funfetti icebox cake for a birthday celebration.
    No Bake Cookie Cake with Lemon Mousse - delicious cocoa biscuits covered with flavourful lemon frosting - find the recipe at daniscookings.com

    Storing

    • Keep this cake in the fridge for up to 4 days.
    • You can also freeze it, covered in plastic wrap or in airtight containers, for up to 2 months.
    No Bake Cookie Cake with Lemon Mousse - delicious cocoa biscuits covered with flavourful lemon frosting - find the recipe at daniscookings.com

    This cake is trully delicious and I am sure you will love it too!

    Here are some more recipes using cookies or graham crackers, in case you want to check:

    • No Bake Berry Ice Box Cake
    • Easy No Bake Cookie Pie
    • Easy Banoffee Icebox Cake

    📝 Recipe

    No Bake Cookie Cake with Lemon Mousse - delicious cocoa biscuits covered with flavourful lemon frosting - find the recipe at daniscookings.com
    Print Recipe Pin Recipe
    5 from 3 votes

    No Bake Cookie Cake with Lemon Mousse

    Course Dessert
    Prep Time 15 minutes mins
    Cook Time 15 minutes mins
    Fridge time 6 hours hrs
    Servings: 12
    Author: Daniela Lambova

    Ingredients

    Metric - US Customary
    • ¾ cup/ 150 g granulated sugar
    • 1 large lemon, not treated, Juice and zest from
    • 6 egg yolks
    • 12,3 oz / 350 g chocolate graham crackers or wafers, approximately
    • 1 cup/ 250 g mascarpone
    • ⅞ cup / 200 g heavy whipping cream
    • chocolate sprinkles
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    Instructions

    • In a small saucepan over medium heat combine lemon juice, lemon zest, sugar and egg yolks. Stir continuously with a spoon. The mixture should start simmering and thickening. When it thickens to the point of the spoon remaining coated when raised, remove the pan from heat.
    • Let cool until room temperature, whisking from time to time. You can leave the lemon curd in the fridge and make the cake on the next day.
    • In a large bowl beat together the lemon curd and mascarpone until well combined.
    • In a separate bowl whip the cold heavy cream. Using a rubber spatula carefully fold the cream into the mascarpone mixture, until the mousse becomes uniform.
    • Arrange a layer of cookies in a rectangular cake pan (8 x 9 inch / 20 x 23 cm or similar). You may need to break them to fill the gaps.
    • Alternatively you can use a round pan and break the cookies in small pieces before spreading them. Cover generously and evenly with lemon mousse. Continue the process until using all biscuits and all the lemon mousse.
    • Wrap the pan with cling film and transfer it to the fridge. Refrigerate for at least 6-8 hours.
    • Before serving decorate with chocolate sprinkles.

    Notes

    Inspired by Mandy's Recipe Box
    • You can use different kinds of cookies or graham crackers for this recipe: Nabisco chocolate wafers, chocolate graham crackers or Oreo thins are just some of the options.
    • Store the cake for up to 4 days in the fridge.
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    Daniela Lambova is a professional food and product photographer, cookbook author and educator. Her recipes help people bake delicious and easy desserts at home with confidence. She teaches baking and photography and has had more than 7000 students from around the world.

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