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Key lime pie recipe in a loaf pan. Small key lime pie for two people (recipe makes 5 slices of pie).

Key Lime Pie Recipe: Small batch key lime pie recipe made in a bread loaf pan to make 5 slices of pie for two.

I can barely contain my excitement over this small batch key lime pie recipe.

I love that you and I both love making small batch desserts in a loaf pan. We’ve made a cheesecake in a loaf pan (several times, actually (lemon blueberry cheesecake and a plain cherry small cheesecake in a loaf pan).

We’ve made small batch brownies in the bread loaf pan for years.

Key Lime Pie Recipe: Small batch key lime pie recipe made in a bread loaf pan to make 5 slices of pie for two.

And up until this key lime pie recipe, this small angel food cake in a loaf pan with microwave lemon curd (of course) was my favorite.

But, after one bite of this cool and creamy key lime pie, and I’ve officially been swept off my feet. This is my new favorite small pie to make! Plus, it’s so easy because it uses the bread loaf pan we all have in our kitchen!

Recipe notes for this small key lime pie recipe:

  1. I didn’t use key limes. So sue me. I couldn’t find them, and I’d rather use fresh lime juice and zest than bottled key lime juice. To replicate the sweet tanginess of a key lime, add 1 tablespoon of lemon juice.
  2. We’re using a bread loaf pan to make a small pie with 5 slices. This is the exact pan I use for all of my small-batch desserts in a bread loaf pan.
  3. Use a shot glass to pack the graham cracker crust firmly on the bottom and up the sides. It wouldn’t be the end of the world if the filling went above the crust, but there’s enough graham cracker crumbs to prevent it, so try to make the crust look like the photo below.
Key Lime Pie Recipe: Small batch key lime pie recipe made in a bread loaf pan to make 5 slices of pie for two.

Once you bake the pie, you want to place it in the fridge to set overnight. We’ll wait on the eggs, citrus, and sweetened condensed milk to thicken properly overnight. Plus, key lime pie is better chilled!

This pie is worth the wait. It sets so perfectly and creamy. I used a slightly higher proportion of egg yolks so that the slices would stay together more easily when slicing. The pie still melts in your mouth, though!

Since this pie only uses egg yolks, be sure to check out m collection of recipes that use egg whites only.

Key Lime Pie Recipe: Small batch key lime pie recipe made in a bread loaf pan to make 5 slices of pie for two.

I love that this pie has such few ingredients! In fact, when I went to make this recipe for you, I didn’t have to head to the store at all! My counter was overflowing with limes (ahem, summertime sangria margaritas are underway), and I always have sweetened condensed milk in my pantry for my making my easy fudge recipe.

Just 6 ingredients to pie! Well, plus whipped cream!

Key Lime Pie Recipe: Small batch key lime pie recipe made in a bread loaf pan to make 5 slices of pie for two.

I hope you love this small key lime pie recipe, and that you find 4 friends to share it with. Or, maybe there’s just one other person and you have a piece each night until you share the very last piece.

Either way, I hope your summer is full of creamy, tart key lime pie for two.

Yield: 5 slices of pie

Key Lime Pie Recipe in a Loaf Pan

Key Lime Pie Recipe: Small batch key lime pie recipe made in a bread loaf pan to make 5 slices of pie for two.

A small key lime pie recipe made in a loaf pan.

Prep Time 30 minutes
Cook Time 30 minutes
Total Time 1 hour

Ingredients

  • 8 whole graham cracker sheets
  • 3 tablespoons (1.5 ounces) unsalted butter, melted
  • 1.5 tablespoons granulated sugar
  • For the filling:
  • 1 14-ounce can of sweetened condensed milk
  • 3 large egg yolks
  • 3 limes to make 3 tablespoons fresh lime juice, plus the zest
  • 1 tablespoon fresh lemon juice (or use 1/4 cup of all lime juice, total)
  • freshly whipped cream, for serving

Instructions

  1. Preheat the oven to 350.
  2. Line a 9x5" bread loaf pan with parchment paper with overhanding sides to use as handles to lift out the pie later. Spray the pan with cooking spray.
  3. Next, in a food processor, combine the graham crackers, melted butter and sugar. Pulse until the crumbs are fine crumbs and look like wet sand.
  4. Press the graham cracker crumbs into the pan, and using a shot glass, press the crust up all sides of the pan by 1". Take your time and press it firmly.
  5. Bake for 10 minutes, and let cool. Leave the oven on.
  6. Meanwhile, in a small bowl, whisk together the condensed milk, citrus juices and egg yolks (reserve the egg whites for another use). Grate the zest of 1 lime using a microplane grater into the mixture and whisk to combine.
  7. Pour the filling into the crust and slide it back into the oven for 18-20 minutes.
  8. When the pie is done, it will be very slightly jiggly.
  9. Let the pie cool to room temperature, cover it with plastic wrap loosely, and refrigerate overnight.
  10. Serve the pie with whipped cream and extra freshly grated lime zest on top.

Nutrition Information:

Yield:

5

Serving Size:

1

Amount Per Serving: Calories: 597Total Fat: 23gSaturated Fat: 12gTrans Fat: 0gUnsaturated Fat: 9gCholesterol: 204mgSodium: 293mgCarbohydrates: 87gFiber: 2gSugar: 69gProtein: 15g

Did you make this recipe?

Please leave a comment on the blog or share a photo on Instagram

About Christina Lane

Christina Lane is the author of 5 cookbooks all about cooking and baking for two. She has scaled down hundreds of recipes into smaller servings so you can enjoy your favorite dishes without the leftovers! Valentine's Day is her favorite holiday.

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28 Comments

  1. HeatherH says:

    What’s the best way to remove the pie from the loaf pan? I would be worried about inverting it but trying to lift slices out of a loaf pan seems like a surefire way for crumbles- delicious crumbles but still.

    1. Christina Lane says:

      Hi HeatherH,

      I leave the edges of the parchment paper long so that they can be used as handles to lift the pie out. Sorry if that wasn’t clear from the directions! After sitting in the fridge overnight, it’s easy!

  2. Ericka says:

    You make me feel heard! haha! Although, I’m sure I wasn’t the only one that asked for this on Instagram when you asked for ideas, you still make me feel heard. I cannot wait to make this. I’m a little banned, at the moment, from making desserts though. I made 3 batches of your Red Velvet Cupcakes for a friend which means I was left with egg yolks. So then, I made your Chocolate Cherry Coconut Bars, Banana Bread, Small Batch Sugar Cookies. Then, I also had some leftover cream cheese, so for good measure, I also made your CREAM CHEESE POUND CAKE WITH STRAWBERRIES. Yes, I did this all in ONE day. HOWEVER, everything but the cookies were sliced and individually wrapped and frozen. I can report that these taste just as incredible when defrosted as they did right out the oven. The cookies were rolled into dough balls and frozen as well for easy baking when a craving hits. Needless to say, I’m not sure when I will be able to convince my loving bf that I NEED to make this Key Lime Pie. Thank you so much for all your hard work!!!!

    1. Christina Lane says:

      This is the greatest comment I’ve ever received, Ericka! Wow! I love you!

      Also, thanks for letting me know which recipes can be frozen. You’re amazing! And you deserve a slice or two of key lime pie ;)

      <3

  3. Anna says:

    I have graham cracker crumbs from a box, how much should I measure out to make the base for this key lime pie?

    1. Christina Lane says:

      I’m sorry, Anna, but I have no idea. I always use sheets. Is there a conversion on the box or anything? Let me google it.

  4. Marcy Pivin says:

    You’ve read my mind…. I bought a bag of key limes over the weekend because they were so cute! Now I have THE perfect recipe to make MY favorite pie. Key West memories will be vividly recalled when I bite into this pie ~ can’t wait!

  5. Maryette says:

    I love you, I love you, I love you! This is my favorite pie, my mom made it for me as my birthday cake when I was a teenager and didn’t like cake. I absolutely adore that you kept it simple, that’s how it’s made in the Bahama’s where my mother learned the recipe.

    Going to make this pie this afternoon. . . oh yes indeed, and did I mention that I love you. . .

    1. Christina Lane says:

      I love you, too, Maryette! I hope you love this recipe! :)

  6. Jaelynn says:

    During the summer the lemon pie is the best pie ever! A bit of work but seems the best recipe so far!

  7. Filipe Morato Gomes says:

    This key lime pie looks absolutely amazing, thanks for sharing the recipe.
    Greetings from Portugal.

  8. Ioanna says:

    Hello Christina! The recipe looks amazing and as I love key lime pie I want to make it for sure. Only problem is I don’t live in the US and we don’t have graham crackers..What’s available is digestives which are pretty much the same. What quantity of those should I use?

    1. Christina Lane says:

      Hi Loanna,
      8 graham crackers is about a heaping 1/2 cup of crumbs. Just crush up your digestives until you have slightly more than 1/2 cup of crumbs.
      Also, I found this on google: It’s 1/7 to 1/8 cup per cracker, or more simply, 0.5oz or 15g per cracker.You generally need 1.5 cups of crumbs for a large 9″ pie crust, and it takes 10-12 crackers.

  9. Jasmine says:

    Hi Christina, I cannot find graham cracker in my country.. is there any other substitute

  10. Julie says:

    This is delicious! I made it for dessert tonight and I am going to make this a lot! I love key lime, like key lime pie was my birthday cake love. It’s hard to find key lime that has the right tart to sweetness. This recipe has the right balance. I might eat the whole thing and not share with the fam.????Thank you!