This Raspberry Glazed Key Lime Cake is a bright and refreshing dessert that perfectly balances the zesty tang of citrus with the sweet, floral notes of fresh berries. It is a stunning addition to any spring brunch or summer tea party, offering a vibrant flavor profile that feels both sophisticated and comforting.
This moist and tender loaf cake is infused with fresh key lime juice and zest, then finished with a beautiful, naturally pink glaze made from real crushed raspberries.
Recipe Details
- Flavor Profile: A delightful interplay of tart key lime and sweet vanilla, topped with a fresh, fruity raspberry finish.
- Textures: A dense yet incredibly moist crumb thanks to the addition of sour cream, paired with a smooth, velvety glaze.
- Total Time: Approximately 15–20 minutes of prep and 50 minutes of baking.
- Difficulty Level: Easy. This recipe uses standard creaming techniques that deliver bakery-quality results at home.
What You’ll Need
To create this citrusy loaf, you will start with a base of creamed butter and sugar, enriched with eggs and flavored with fresh key lime zest, juice, and vanilla. The moisture and tender texture come from the addition of sour cream. For the vibrant topping, you will whisk together a simple glaze of powdered sugar, butter, and heavy cream, then stir in finely chopped fresh raspberries for color and flavor.
Ingredient Notes
- Key Lime Zest and Juice – Key limes are smaller and more acidic than standard Persian limes, providing a much more intense citrus aroma and flavor.
- Sour Cream – This is the secret to the cake’s moist, rich crumb and ensures the loaf stays tender for days.
- Butter – Ensure your butter is properly softened so it creams easily with the sugar, creating a light and airy base.
- Fresh Raspberries – Using real fruit in the glaze provides a beautiful natural pink hue and a burst of authentic berry flavor.
- Heavy Cream – This adds richness to the glaze and helps achieve the perfect pouring consistency.
Add-ins and Substitutions
- Lime Slices: Garnish the finished cake with very thin slices of key lime for a professional, decorative look.
- Poppy Seeds: You can fold in 1 tablespoon of poppy seeds to the batter for a bit of extra texture and visual appeal.
- Yogurt Substitute: If you do not have sour cream, full-fat plain Greek yogurt can be used as a 1-to-1 substitute to maintain that signature moisture.
How to Make Raspberry Glazed Key Lime Cake
The process for this cake is designed to build a stable, airy batter that holds up beautifully in a loaf pan.
Begin by preheating your oven to 350 degrees. Spray a 9×5-inch loaf pan with non-stick spray to ensure easy removal later. In the bowl of a stand mixer, cream together the softened butter and the sugar until the mixture is light and fluffy. Beat in the eggs one by one until they are fully incorporated, then stir in the lime zest, vanilla, and fresh key lime juice.
In a separate small bowl, stir together the dry ingredients: the flour, salt, and baking soda. Slowly add these dry ingredients to your wet mixture, stirring until the batter is fully blended. Finally, stir in the sour cream by hand or on low speed until the batter is smooth.
Pour the batter into your prepared loaf pan and bake for 50 minutes, or until the top is golden. You will know the cake is ready when a toothpick inserted into the center comes out clean. Remove the cake from the oven and allow it to cool completely on a cooling rack before you attempt to glaze it.
To prepare the glaze, whisk together the softened butter, powdered sugar, and heavy cream. If the mixture is too thick, you can add a little more cream until it reaches your desired consistency. Stir in the finely chopped raspberries and spread the glaze evenly over the cooled cake.
Pro Tip: Always zest your key limes before you juice them. It is much easier to grate the skin of a firm, whole lime than one that has already been squeezed.
Recipe Tips
- Room Temperature Eggs: Using room temperature eggs allows them to emulsify more easily into the creamed butter, preventing the batter from curdling.
- Zest Thoroughly: Don’t be afraid to use a full 3 teaspoons of zest; that is where the majority of the lime’s aromatic oils are found.
- Cool Completely: Make sure the cake is entirely cold before applying the glaze. If the cake is even slightly warm, the glaze will melt and run off the sides.
- Don’t Overmix: Once you add the dry ingredients and sour cream, mix only until just combined to ensure the cake remains light rather than tough.
FAQs
Can I use regular limes instead of key limes? Yes, you can substitute regular lime juice and zest if key limes are unavailable. The flavor will be slightly less intense, but the cake will still be delicious.
How do I store this cake? Because the glaze contains fresh raspberries and cream, it is best to store this cake in an airtight container in the refrigerator for up to 3 to 4 days.
Can I use frozen raspberries for the glaze? Fresh raspberries are preferred for the best texture and color. If you use frozen, thaw them first and drain any excess liquid so the glaze doesn’t become too watery.
Serving Suggestions
- Afternoon Tea: Serve a thick slice with a hot cup of Earl Grey or a light herbal tea.
- Whipped Cream: A dollop of fresh, unsweetened whipped cream on the side can help balance the sweetness of the glaze.
- Picnic Treat: This loaf is sturdy enough to be transported to a picnic or outdoor gathering; just keep it in a cool spot.
Make This Recipe in Advance
You can bake the key lime loaf a day in advance and store it (unglazed) at room temperature wrapped tightly in plastic wrap. The glaze is best made and applied on the day you plan to serve it to ensure the raspberries look their best. If you need to prep the glaze ahead of time, keep it in the fridge and give it a quick whisk before spreading it on the cake.
Print
Key Lime Loaf Cake with Fresh Raspberry Glaze
- Total Time: 70 minutes
- Yield: 1 Loaf (10 Slices) 1x
- Diet: Vegetarian
Description
A bright and refreshing dessert balancing zesty citrus with sweet, floral notes of fresh berries. This moist and tender loaf is infused with fresh key lime juice and zest, finished with a vibrant, naturally pink glaze made from real crushed raspberries.
Ingredients
The Key Lime Loaf
- 1 3/4 cups all-purpose flour
- 1 cup granulated sugar, 1/2 cup softened butter
- 1/2 cup sour cream, 2 large eggs
- 2–3 tsp key lime zest, 2 tbsp fresh juice
- 1 tsp vanilla, 0.5 tsp salt, 0.25 tsp baking soda
The Raspberry Glaze
- 1/2 cup powdered sugar
- 1 tbsp softened butter, 1 tbsp heavy cream
- 2 tbsp fresh raspberries, finely chopped
Instructions
Prep: Preheat oven to 350°F. Grease a 9×5-inch loaf pan.
Cream: Beat butter and sugar until fluffy. Add eggs one at a time, then zest, vanilla, and lime juice.
Combine: Whisk dry ingredients and gradually add to wet. Stir in sour cream by hand until smooth.
Bake: Bake for 50 mins until a toothpick comes out clean. Cool completely on a wire rack.
Glaze: Whisk butter, sugar, and cream until smooth. Fold in chopped raspberries and spread over the cold cake.
Notes
Key Lime Intensity: Key limes are more acidic than standard limes; if substituting, add an extra tsp of juice.
The Sour Cream Secret: High fat and acidity break down gluten for a melt-in-your-mouth texture.
Temperature Control: Applying glaze to a warm cake will cause the butter and sugar to melt into a thin syrup.
- Prep Time: 20 minutes
- Cook Time: 50 minutes
- Category: Dessert / Cake
- Method: Creaming / Baking
- Cuisine: American Fusion
Nutrition
- Serving Size: 1 Slice
- Calories: 295
- Sugar: 26
- Sodium: 215
- Fat: 13
- Saturated Fat: 8
- Unsaturated Fat: 5
- Trans Fat: 0.4
- Carbohydrates: 41
- Fiber: 1
- Protein: 4
- Cholesterol: 70
Keywords: key lime loaf cake, raspberry glazed lime cake, sour cream lime cake, spring brunch recipes, citrus loaf dessert, fresh raspberry glaze, easy tea party cakes
