Easy Lime Refrigerator Cake Recipe – No Baking Necessary

lime ice box cake

When it gets hot, and I know it’s going to, I do everything possible to keep the kitchen cool. When you have a 110F day you just can’t bake and keep the kitchen at a temperature that will actually support life.

The thing is that my family does not lose their sweet cravings just because it’s too hot to cook.

Icebox cakes, refrigerator cakes — whatever you want to call them — are totally the answer. You make them up to 24 hours ahead of time (anything more than that and they tend to get a little soggy), put them in the fridge, and there’s a nice cool dessert ready for whenever you need it.


[pullquote] The English Trifle, which has been around for centuries, the Charlotte that was so popular in Colonial America, and the ice cream cake which evolved in Victorian times are all part of the icebox cake’s family tree.[/pullquote] These no bake desserts showed up during World War I and by the 1920s, what with all of the newfangled foods and appliances, icebox cake recipes were on the back of many different products. People loved them.

Actually, they had been around awhile in different forms. The English Trifle, which has been around for centuries, the Charlotte that was so popular in Colonial America, and the ice cream cake which evolved in Victorian times are all part of the icebox cake’s family tree. They have been made with vanilla wafers, ladyfingers, chocolate cookies… and just about everything else you can imagine.

I have a couple of cookbooks by Ida Bailey Allen, a woman who wrote cookbooks and gave sage food advice in the 1930s and 1940s. She says this about refrigerator cakes, “Icebox cake is an adaptation of either a charlotte or Bavarian cream, or a mixture of both. It always calls for whipped cream in some form and freqently for butter. Nuts are often added and the mould is either decorated or put together with some sort of a cake mixture, as macaroons, sponge cake, angel cake, or lady fingers. In any case the dessert is so extremely rich that it should be served only in small quantities in a meal containing very little fat.”

Think of my easy lime refrigerator cake as sort of a double layer key lime pie. There’s a layer of graham crackers topped with a layer of super simple lime custard that you make in the microwave. Then gently press on another layer of graham crackers and top with another layer of custard. Add a final layer of graham crackers and cover it tightly. After at least an hour in the refrigerator you top it with whipped cream and serve it amidst ooohs and aaahhhs of appreciation and undying gratitude.

lime-icebox-cake-collagesteps to making lime refrigerator cake

Now, you can’t freeze this but you could make the custard up to two days ahead of time and assemble it the day before you wanted to serve it. It really is so very easy that it is almost effortless. Don’t bow to the pressure of telling you that you can use instant pudding and get something just as good. Don’t you do it! It won’t be and you will save less than five minutes.

I love using the microwave for custards. Not only is it fast but they don’t scorch. You do need to watch carefully to make sure that it doesn’t overcook and curdle, though.

easy lime refrigerator cake slice on vintage plate

The graham crackers soak up just enough of the moisture to be firm without being gooey and soggy. The homemade custard is creamy without being runny and what happens is that the cake cuts beautifully and holds its shape. The spoon glides through the dessert and that first taste? Oh my. Tangy lime that makes your mouth water and pulls in the sides of you mouth is the first wave, then the graham cracker sweetness soothes and beckons you to taste a bit more. That’s when the whipped cream kicks in.

It is just so good, I promise.

Easy Lime Refrigerator Cake Recipe – No Baking Required
Prep time
Cook time
Total time
Tangy sweet layers of rich lime custard and graham crackers topped with lightly sweetened whipped cream.
Serves: 12 servings
  • 6 large egg yolks, room temperature
  • ¾ cup sugar
  • ¼ cup cornstarch
  • 1½ tablespoons finely grated lime zest (use a microplane)
  • Pinch of salt
  • 2½ cups whole milk
  • 1 cup lime (from about 6 limes)
  • 24 graham crackers
  • 1 cup heavy cream
  • 1 teaspoon vanilla
  • ¼ cup of sugar, or to taste
  1. Whisk egg yolks in a bowl and set aside.
  2. Mix ¾ cup of sugar, cornstarch, lime zest, and salt.
  3. Whisk in the milk until smooth.
  4. Microwave on high in one minute increments until the pudding thickens, whisking after each minute. (about 7 minutes)
  5. Temper the egg yolks by whisking in about ½ cup of the hot custard a little at a time.
  6. Pour the egg mixture a back into the custard, whisking constantly.
  7. Microwave another minute or two.
  8. Remove from the microwave and whisk in the lime juice until well blended.
  9. Press a piece of buttered plastic wrap over the top to prevent a skin from forming and refrigerate until cool.
  10. Line the bottom of a 8”x8” baking dish with graham crackers. You may have to break some crackers to make them cover the bottom. That’s fine.
  11. Spoon half of the custard over the bottom layer of graham crackers. Smooth the top evenly.
  12. Add another layer of graham crackers.
  13. Add another layer of lime custard.
  14. Top with on more layer of crackers and cover tightly.
  15. Refrigerate for at least an hour or up to one day.
  16. Just before serving mix the vanilla and the cream.
  17. Whip, adding the sugar slowly.
  18. Spread the cream over the cake and serve.
Must be chilled for at least an hour.
Nutrition Information
Serving size: Carbs: 48.5 Calories: 301 Fat: 10.6

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  1. Kelly says

    One cup of lime juice? That seems like an awful lot. This recipe sounds great, though. Thinking I may have to make it this weekend.

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