Key Lime Pie Cupcakes: A Zesty Twist on a Classic Dessert
There’s something magical about the tangy-sweet balance of key lime pie, and when that flavor is packed into a soft, fluffy cupcake, the result is nothing short of irresistible. These Key Lime Pie Cupcakes combine the bright citrusy zing of fresh key limes with a buttery graham cracker crust and a luscious lime-infused frosting. Each bite delivers the perfect combination of tart and sweet, with a creamy finish reminiscent of the classic pie.
Perfect for summer parties, afternoon treats, or anytime you crave a tropical escape, these cupcakes are sure to impress. They’re easy to make, full of vibrant flavor, and bring a refreshing twist to your dessert table. Plus, with their beautiful presentation, they’re as gorgeous as they are delicious!
Ingredients
Here’s what you’ll need to bring these delightful cupcakes to life:
For the Graham Cracker Crust:
Ingredient | Quantity |
---|---|
Graham cracker crumbs | 1 cup |
Granulated sugar | 2 tbsp |
Unsalted butter (melted) | 4 tbsp |
For the Cupcakes:
Ingredient | Quantity |
---|---|
All-purpose flour | 1 ¾ cups |
Baking powder | 1 ½ tsp |
Baking soda | ½ tsp |
Salt | ¼ tsp |
Unsalted butter (softened) | ½ cup |
Granulated sugar | ¾ cup |
Eggs | 2 large |
Key lime zest | 1 tbsp |
Key lime juice (fresh) | ¼ cup |
Buttermilk | ½ cup |
Vanilla extract | 1 tsp |
For the Key Lime Frosting:
Ingredient | Quantity |
---|---|
Unsalted butter (softened) | 1 cup |
Powdered sugar | 3 ½ cups |
Key lime zest | 1 tbsp |
Key lime juice | 3 tbsp |
Heavy cream | 2 tbsp |
Vanilla extract | 1 tsp |
Pinch of salt | Optional |
For Garnishing:
- Graham cracker crumbs
- Thin lime slices or zest
- Whipped cream (optional)

Equipment Needed
- Muffin tin & cupcake liners – Essential for shaping and baking the cupcakes.
- Mixing bowls – For combining the ingredients separately before mixing.
- Hand mixer or stand mixer – Helps create a fluffy batter and smooth frosting.
- Zester & juicer – Extracting fresh lime zest and juice for maximum flavor.
- Piping bag & tip – For decorating the cupcakes beautifully with frosting.
Step-by-Step Instructions
Step 1: Prepare the Graham Cracker Crust
- Preheat the oven to 350°F (175°C) and line a muffin tin with cupcake liners.
- In a small bowl, mix together graham cracker crumbs, sugar, and melted butter until combined.
- Spoon about 1 tablespoon of the mixture into the bottom of each cupcake liner and press firmly.
- Bake for 5 minutes, then remove and let cool while preparing the cupcake batter.
Step 2: Make the Cupcake Batter
- In a medium bowl, whisk together flour, baking powder, baking soda, and salt.
- In a large mixing bowl, beat the butter and sugar until light and fluffy (about 2 minutes).
- Add the eggs, one at a time, beating well after each addition.
- Mix in the key lime zest, key lime juice, and vanilla extract.
- Alternately add the flour mixture and buttermilk, starting and ending with the dry ingredients. Mix just until combined.
Step 3: Bake the Cupcakes
- Fill each cupcake liner ¾ full with batter over the graham cracker crust.
- Bake for 18-20 minutes, or until a toothpick inserted in the center comes out clean.
- Allow the cupcakes to cool in the pan for 5 minutes, then transfer to a wire rack to cool completely.
Step 4: Prepare the Key Lime Frosting
- In a large bowl, beat the butter until creamy and smooth.
- Gradually add the powdered sugar, mixing until fully incorporated.
- Add key lime zest, juice, vanilla extract, and heavy cream, beating until light and fluffy.
Step 5: Decorate the Cupcakes
- Pipe or spread the frosting generously over the cooled cupcakes.
- Sprinkle graham cracker crumbs on top for added crunch.
- Garnish with lime zest or a thin lime slice for a fresh, vibrant look.
Tips & Variations
- Don’t overmix the batter – This helps keep the cupcakes soft and tender.
- For a stronger lime flavor, add a little more zest to the frosting.
- Use a different crust – Swap graham crackers for vanilla wafers or digestive biscuits.
- Make it dairy-free – Use coconut milk in place of buttermilk and vegan butter for frosting.
- Turn them into mini cupcakes – Adjust the baking time to 12-14 minutes.
Serving Suggestions
These cupcakes look stunning when arranged on a cake stand with fresh lime slices scattered around. Serve them with a dollop of whipped cream or a drizzle of white chocolate for an extra indulgent treat.
For a summer gathering, pair them with a side of fresh berries or a tropical fruit salad to complement the citrus notes.

Pairings
Pair these cupcakes with:
- Iced coconut mojito – The mint and coconut enhance the tropical vibe.
- Chilled white wine – A crisp Sauvignon Blanc balances the tart lime.
- Sweet iced tea – A Southern classic that complements the citrus flavor.
Storage & Reheating
- Refrigeration: Store in an airtight container in the fridge for up to 3 days.
- Freezing: Cupcakes (without frosting) can be frozen for up to 2 months. Thaw before frosting.
- Reheating: If you prefer them warm, microwave for 5-10 seconds before serving.
Nutritional Information (Per Cupcake)
Nutrient | Amount |
---|---|
Calories | 320 |
Carbs | 42g |
Fat | 15g |
Protein | 3g |
Sugar | 28g |
Sodium | 120mg |
Nutrition information is automatically calculated and should be used as an approximation.
Conclusion
These Key Lime Pie Cupcakes take everything you love about the classic pie and turn it into a handheld delight. The buttery graham cracker crust, moist lime-infused cake, and creamy citrus frosting make every bite a refreshing treat. Whether you’re baking for a special occasion or just treating yourself, these cupcakes are a must-try!
Give them a go and let me know how they turn out—share your creations on social media or drop a comment below!
Key Lime Pie Cupcakes: A Zesty Twist on a Classic Dessert
12
cupcakes20
minutes20
minutes40
minutesIngredients
- For the Graham Cracker Crust:
1 cup graham cracker crumbs
2 tbsp granulated sugar
4 tbsp unsalted butter (melted)
- For the Cupcakes:
1 ¾ cups all-purpose flour
1 ½ tsp baking powder
½ tsp baking soda
¼ tsp salt
½ cup unsalted butter (softened)
¾ cup granulated sugar
2 large eggs
1 tbsp key lime zest
¼ cup key lime juice (fresh)
½ cup buttermilk
1 tsp vanilla extract
- For the Key Lime Frosting:
1 cup unsalted butter (softened)
3 ½ cups powdered sugar
1 tbsp key lime zest
3 tbsp key lime juice
2 tbsp heavy cream
1 tsp vanilla extract
Pinch of salt (optional)
- For Garnishing:
Graham cracker crumbs
Thin lime slices or zest
Whipped cream (optional)
Directions
- Make graham cracker crust and pre-bake for 5 minutes.
- Prepare cupcake batter and bake at 350°F for 18-20 minutes.
- Make key lime frosting and frost the cooled cupcakes.
- Garnish with graham cracker crumbs and lime zest.