This gluten-free key lime pie features a buttery gluten-free graham cracker crust and a creamy, tart filling made with fresh key lime juice, egg yolks, sweetened condensed milk, and Greek yogurt. Swapping in Greek yogurt lightens the filling and keeps it silky — it’s the easiest version I’ve made and the one my family requests all summer.
A Quick Look At The Recipe
- ✅ Recipe Name: Gluten-Free Key Lime Pie with Greek Yogurt
- 🕒 Ready In: 5 minutes prep + 30 minutes bake (plus 3 hours to chill)
- 👪 Serves: 12 slices
- 🍽 Calories: ~218 per slice
- 💪 Protein: 6g per slice
- 🥣 Main Ingredients: Gluten-free graham crackers, cream cheese, Greek yogurt, sweetened condensed milk, egg yolks, key lime juice
- 📖 Dietary Info: Gluten-free, vegetarian, nut-free
- ⭐ Why You’ll Love It: Uses half the condensed milk and Greek yogurt for a lighter, silkier filling. You still get a buttery crust, creamy center, and real key lime tang — without feeling weighed down.
SUMMARIZE & SAVE THIS CONTENT ON
Key lime pie has long been one of my favorite desserts, but traditional recipes can be heavy. I wanted a gluten-free version that still tastes authentic — buttery crust, bright lime, and a creamy filling — but a little lighter. After many tests, replacing half the sweetened condensed milk with plain Greek yogurt delivered the texture and flavor I wanted.
Using one can of sweetened condensed milk plus Greek yogurt cuts added sugar and saturated fat while adding a subtle tang that enhances the lime. The filling remains silky and sets nicely. I’ve served this pie for birthdays, barbecues, and holiday brunches; friends and family never guess it’s the lighter, gluten-free version.
If you enjoy this pie, try other lighter gluten-free desserts like gluten-free strawberry shortcake, gluten-free tiramisu, or gluten-free chocolate cupcakes for the same approach: real desserts, thoughtfully lightened.
⭐️⭐️⭐️⭐️⭐️
Made this recipe for Easter, it was a HIT 😋 10/10 most delicious key lime pie ever and super easy to make! Highly recommend — a new family favorite and staple.
– Jamie
Why You’ll Love this Recipe
- Lighter than the classic — half the condensed milk, plus Greek yogurt for a silkier filling.
- Brighter lime flavor — the yogurt’s tang sharpens the citrus instead of masking it.
- Buttery graham cracker crust — crisp and stable, made gluten-free or regular.
- Sets up reliably — no cracks and no runny center when baked and chilled properly.
- Better the next day — make ahead for parties or holidays; flavors deepen after chilling.
- Undetectably lighter — many readers have made this and reported that guests couldn’t tell it was lighter or gluten-free.
What Makes This Key Lime Pie Healthier?
Most recipes call for two 14-ounce cans of sweetened condensed milk, which is a large amount of added sugar. This version uses one can plus plain 0% Greek yogurt instead of the second can.
The yogurt reduces added sugar and saturated fat while contributing a pleasing tang that lifts the lime flavor. The filling still sets creamy and smooth, but feels lighter on the palate.
Each slice is about 218 calories, with 6g protein and 22g sugar. That’s significantly less than many classic versions, while maintaining the same satisfying creamy-tart profile.
Ingredients You’ll Need
For the Gluten-Free Graham Cracker Crust
- Gluten-free graham crackers — about 12–14 full crackers (2 cups crumbs). Any brand works.
- Coconut sugar or granulated sugar — to sweeten and bind the crust. Light brown sugar is an option.
- Unsalted butter — melted; binds the crumbs and gives a buttery snap. Vegan butter or coconut oil can be substituted.
For the Key Lime Filling
- Cream cheese — 4 ounces, softened. Light or full-fat both work; it helps the filling slice cleanly.
- Egg yolks — 3 large yolks to help the filling set without becoming rubbery.
- Sweetened condensed milk — 1 (14-ounce) can; cutting this in half is what lightens the pie.
- Plain 0% Greek yogurt — 3/4 cup. 2% or 5% also work; it adds tang and creaminess.
- Fresh key lime juice — about 2/3 cup (5–7 key limes). Regular limes can substitute if needed.
- Lime zest — about 1 tablespoon (zest of ~2–3 limes) for concentrated citrus oils and aroma.
Scroll to the recipe card below for full quantities and the step-by-step method.
Ingredient Substitutions & Variations
- Gingersnap crust — gluten-free gingersnaps make a spicier base.
- Key lime juice — regular limes work 1:1 but are less floral. Bottled key lime juice is a reliable backup when fresh key limes are unavailable.
- Dairy-free option — use sweetened condensed coconut milk and coconut yogurt, adding 2 tbsp cornstarch to help the filling set.
- Mini pies — bake in a muffin tin for individual servings (adjust times slightly).
- Key lime bars — press into a 9×13 pan for thicker bars; bake a little longer.
What Are Key Limes?
Key limes are smaller and often more yellow than Persian limes. They offer a tart, floral, and slightly tropical flavor that gives classic key lime pie its signature brightness.
You’ll need about 5–7 key limes to yield roughly 2/3 cup juice. If fresh key limes aren’t available, bottled key lime juice is an acceptable substitute, and regular limes can work in a pinch.
How to Make Gluten-Free Key Lime Pie (Step-by-Step)
Below is a concise overview of the preparation. The full recipe card with exact measurements and timings follows further down.
- Step 1: Make the crust — combine gluten-free graham cracker crumbs, melted butter, and sugar until it resembles wet sand.
- Step 2: Press the crumb mixture firmly into a 9-inch pie dish for an even crust.
- Step 3: Pre-bake the crust at 350°F for 10 minutes, then let it cool.
- Step 4: Beat the softened cream cheese until completely smooth for a silky filling base.
- Step 5: Mix the filling — add egg yolks, condensed milk, Greek yogurt, key lime juice, and zest; mix on low until smooth.
- Step 6: Pour the filling into the cooled crust and smooth the top.
- Step 7: Bake 26–30 minutes until edges are set but center still jiggles slightly.
- Step 8: Cool at room temperature 30 minutes, then chill in the refrigerator at least 3 hours (overnight is best) before serving.
Video Tutorial (Step-by-Step)
My Tips for the Best Gluten-Free Key Lime Pie
- Remove the pie while the center still jiggles slightly. Edges should appear set; the center firms as it cools. Overbaking makes the filling spongy.
- Cool the crust before filling. Let the crust rest 20 minutes so a hot crust doesn’t curdle the yolks or make the filling grainy.
- Use room-temperature cream cheese. Cold cream cheese won’t blend smoothly and can leave lumps; take it out about 30 minutes before starting.
- Zest before juicing. Zesting a juiced lime is difficult; zest first, then juice.
- Chill overnight when possible. Three hours is the minimum; chilling overnight yields clean, bakery-style slices and deeper flavor.
What to Serve with Key Lime Pie
Key lime pie is rich and tangy; pair it with light, slightly salty, or contrasting elements to balance the flavors.
- Fresh whipped cream — a dollop softens the tartness and adds creaminess.
- Fresh berries — raspberries or blueberries add color and cut the richness.
- Toasted coconut flakes — a tropical, slightly salty crunch when sprinkled on top.
- Vanilla ice cream — a scoop turns the slice into a full summer dessert.
How to Store & Freeze
- To store: Cover tightly with plastic wrap or foil and refrigerate up to 4 days. The crust stays crisp for about 2 days, then softens slightly.
- To freeze: Freeze before adding whipped cream. Wrap tightly in plastic wrap and foil; freeze up to 1 month. Thaw overnight in the refrigerator. Individual slices freeze well the same way.
- Food safety tip: Don’t leave the pie at room temperature more than 2 hours because it contains eggs and dairy.
Frequently Asked Questions
The filling is naturally gluten-free, but traditional graham cracker crusts contain wheat. Use gluten-free graham crackers or an alternative gluten-free crust (for example, an almond-flour base) and always check labels on packaged ingredients.
Yes. Regular (Persian) limes work as a 1:1 swap, though the flavor will be slightly less tart and floral. Bottled key lime juice is a convenient alternative when fresh key limes are unavailable.
A dairy-free version should work with substitutions: dairy-free cream cheese, unsweetened coconut yogurt, and sweetened condensed coconut milk. Add 2 tablespoons cornstarch to help the filling set, since dairy-free versions can be softer.
A runny filling usually means the pie was underbaked or didn’t chill long enough. The edges should be set while the center still jiggles slightly when removed from the oven. Chill at least 3 hours, ideally overnight.
Yes — it’s often better the next day. Make up to 2 days in advance, cover tightly, and refrigerate. Add whipped cream and lime slices right before serving.
More Gluten-Free Dessert Recipes You’ll Love
If you enjoyed this pie, try other gluten-free dessert recipes for a similar balance of flavor and lighter texture.
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Gluten-Free Strawberry Shortcake
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Gluten-Free Banana Cake with Cream Cheese Frosting
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Gluten-Free Chocolate Cupcakes
-
Healthy Tiramisu (Gluten-Free)
Did you make this recipe?
If you make this recipe, please comment and rate it below. Tag @healthfulblondie on Instagram and use the hashtag #healthfulblondie so I can see and share your creations.
📖 Recipe
Gluten Free Key Lime Pie
Ingredients
The Gluten-Free Crust:
- 2 cups gluten-free graham cracker crumbs, about 12–14 full crackers
- ¼ cup coconut sugar or granulated sugar
- 6 tablespoon unsalted butter, melted
The Filling:
- 4 oz cream cheese, softened
- 3 large egg yolks
- 1 can (14 oz) sweetened condensed milk
- ¾ cup plain 0% Greek yogurt, 2% or 5% also work
- ⅔ cup fresh key lime juice, about 5–7 key limes
- 1 tablespoon lime zest, about 2–3 limes
Instructions
Make the crust
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Preheat the oven to 350°F.
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Crush the graham crackers in a food processor or in a sealed bag with a rolling pin until fine crumbs form.
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Mix the crust by combining crumbs, sugar, and melted butter until the mixture resembles wet sand.
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Press into a 9-inch pie dish firmly along the bottom and up the sides to form an even layer.
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Bake the crust 10 minutes, then allow it to cool at least 20 minutes before filling.
Make the filling
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Whip the cream cheese in a large bowl until completely smooth.
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Add egg yolks, condensed milk, Greek yogurt, lime juice, and lime zest and mix on low 30–60 seconds until smooth and homogenous.
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Pour the filling into the cooled crust and smooth the surface with a spatula.
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Bake 26–30 minutes. The edges should be set while the center still jiggles slightly when removed.
Cool and chill
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Cool at room temperature 30 minutes, then refrigerate at least 3 hours or overnight for best texture.
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Top and serve with whipped cream, lime slices, and extra zest if desired.
Notes
Cream Cheese: Regular or reduced-fat should work; be sure it’s softened.
Greek Yogurt: Plain 0% is used here; 2% or 5% are acceptable alternatives.
Storing: Cover and refrigerate for up to 3–4 days.
Freezing: Freeze the pie or slices (without whipped cream) wrapped tightly for up to 1 month; thaw overnight in the fridge.