These Starbucks Lime Frosted Coconut Bars are the ultimate copycat treat for fans of the discontinued coffeehouse classic. They offer a perfect balance of tropical sweetness and bright citrus zest, combining a chewy coconut blondie base with a creamy, lime-infused frosting that pops with flavor.
Imagine a soft, buttery bar filled with shredded coconut and white chocolate chips, topped with a vibrant lime frosting and a delicate white chocolate drizzle.
Recipe Details
- Flavor Profile: A tropical fusion of toasted coconut and sweet white chocolate, finished with a zesty, tangy lime frosting.
- Textures: Dense and chewy like a blondie, paired with a light, fluffy buttercream and a crunch from extra coconut toppings.
- Total Time: Approximately 15 minutes of prep and 15–16 minutes of baking, plus cooling time.
- Difficulty Level: Easy. This is a simple “cream and fold” recipe that delivers professional-looking results.
What You’ll Need
To recreate these iconic bars, you will start with a base made of creamed butter and brown sugar, flavored with both vanilla and coconut extracts. The dry ingredients include flour, baking powder, and salt, which provide the structure for the shredded coconut and white chocolate chips. The signature topping is a homemade lime buttercream frosting made with fresh lime juice, lime extract, and a touch of food coloring for that unmistakable look.
Ingredient Notes
- Coconut Extract – This is the key to achieving that authentic “Starbucks” aroma and flavor in the base of the bar.
- Brown Sugar – Using brown sugar instead of white sugar in the bars ensures they remain soft and chewy rather than crispy.
- Shredded Coconut – Use unsweetened shredded coconut to keep the sweetness levels balanced against the white chocolate and frosting.
- Lime Juice and Extract – Using both juice and extract in the frosting provides a multi-layered citrus punch that is both tart and aromatic.
- White Chocolate Chips – Mini chips are ideal here as they distribute evenly throughout the bars, providing little pockets of sweetness in every bite.
Add-ins and Substitutions
- Macadamia Nuts: For even more tropical flair, you can fold in 1/4 cup of chopped macadamia nuts with the coconut.
- Toasted Coconut: Toast the extra coconut used for the topping in a dry skillet for 2–3 minutes to add a deeper, nutty flavor and extra crunch.
- Dairy-Free: You can substitute the butter and heavy cream with high-quality plant-based alternatives to make these dairy-free, provided the white chocolate chips are also dairy-free.
How to Make Starbucks Lime Frosted Coconut Bars
The assembly of these bars is straightforward, focusing on not overworking the dough to keep the texture tender.
Preheat your oven to 350F and line an 8×8 baking pan with parchment paper. In a large bowl, cream the 1/2 cup of softened butter and 2/3 cup of brown sugar until the mixture is smooth and creamy. Add in the egg, vanilla extract, and coconut extract, mixing well to combine.
Next, gently fold in the flour, baking powder, salt, and 1/2 cup of shredded unsweetened coconut. Mix only until the flour mixture disappears to ensure the bars stay soft. Fold in the white chocolate chips, then spread the batter evenly into your prepared baking sheet. Bake for 15–16 minutes. Once finished, pull the bars from the oven and let them cool down completely before frosting.
To make the lime frosting, whip the softened butter, powdered sugar, milk (or cream), lime juice, and lime extract in a large bowl until the mixture is light and fluffy. Add a little lime green food coloring (or a mix of yellow and green) to achieve that perfect signature color.
Spread the frosting over the cooled bars. Drizzle with 2 tablespoons of melted white chocolate using a piping bag or spoon, then sprinkle with extra coconut. Slice into bars and enjoy!
Pro Tip: Always wait until the bars are completely cool to the touch before applying the frosting. If the bars are even slightly warm, the butter-based frosting will melt and slide off.
Recipe Tips
- Parchment Overhang: Leave a little bit of parchment paper hanging over the sides of the pan. This allows you to lift the entire block of bars out for easier frosting and cleaner slicing.
- Room Temperature Egg: Using a room temperature egg ensures it emulsifies properly with the creamed butter and sugar, resulting in a more uniform bake.
- Don’t Overbake: These bars are best when they are still slightly soft. 15–16 minutes is usually the sweet spot; they will continue to firm up as they cool.
- Slicing: For the cleanest squares, use a sharp knife and wipe it clean with a warm, damp cloth between each cut.
FAQs
Can I use bottled lime juice? Fresh lime juice is highly recommended for the frosting as it provides a much brighter and more natural flavor than bottled varieties.
Why did my frosting turn out runny? This can happen if too much lime juice or milk was added. If it is too soft, simply whisk in an extra 1/4 cup of powdered sugar at a time until it reaches your desired consistency.
Do these need to be refrigerated? While they can stay at room temperature for a day, they are best kept in the fridge due to the butter in the frosting. Many people actually prefer the texture of these bars when they are served chilled.
Serving Suggestions
- Starbucks Coffee: Pair these bars with a tall glass of cold brew or your favorite latte to complete the coffeehouse experience.
- Cold Milk: The richness of the coconut and white chocolate makes these a perfect match for a cold glass of milk.
- Fresh Lime Slices: Garnish the serving platter with thin wheels of fresh lime for a beautiful, professional presentation.
Make This Recipe in Advance
The coconut bars can be baked a day in advance and stored (unfrosted) at room temperature in an airtight container. The frosting can also be made ahead and kept in the fridge; just be sure to let it come to room temperature and give it a quick whip before spreading it on the bars. Once frosted and sliced, these bars freeze remarkably well for up to 3 months when stored in a freezer-safe container.
Print
Starbucks Copycat Lime Frosted Coconut Bars
- Total Time: 31 minutes
- Yield: 12–16 Bars 1x
- Diet: Vegetarian
Description
The ultimate copycat treat for fans of the discontinued Starbucks classic. Combining a chewy coconut blondie base with creamy, lime-infused frosting, these bars offer a perfect balance of tropical sweetness and bright citrus zest, finished with a signature white chocolate drizzle.
Ingredients
The Coconut Blondie Base
- 1 1/4 cups flour, 2/3 cup brown sugar, 1/2 cup softened butter
- 1/2 cup shredded coconut, 1/3 cup white chocolate chips
- 1 egg, 1 tsp vanilla, 1/4 tsp coconut extract
- 1/2 tsp baking powder, 1/4 tsp salt
The Signature Lime Frosting
- 1 1/2 cups powdered sugar, 1/2 cup room temp butter
- 2 tbsp lime juice, 1/2 tsp lime extract, 1 tbsp cream
- Finish: Green food coloring, 2 tbsp melted white chocolate
Instructions
Prep: Preheat oven to 350°F. Line an 8×8 pan with parchment.
Base: Cream butter and sugar. Mix in egg and extracts. Fold in flour, leavening, and coconut until just combined. Fold in chips.
Bake: Spread into pan and bake for 15–16 mins. Cool completely.
Frosting: Beat butter, sugar, cream, juice, and extract until fluffy. Add green tint.
Assemble: Frost the bars, drizzle with melted white chocolate, and sprinkle extra coconut. Slice into squares.
Notes
The ‘Cool’ Rule: Ensure bars are stone-cold before frosting to prevent the butter-based cream from melting.
Authentic Flavor: The pairing of coconut extract in the base and lime extract in the frosting is the secret to the Starbucks profile.
Don’t Overbake: Pull them at 16 minutes to maintain a dense, chewy blondie texture.
- Prep Time: 15 minutes
- Cook Time: 16 minutes
- Category: Dessert / Snack Bars
- Method: Creaming / Baking
- Cuisine: American Coffeehouse Copycat
Nutrition
- Serving Size: 1 Bar
- Calories: 310
- Sugar: 28
- Sodium: 160
- Fat: 18
- Saturated Fat: 12
- Unsaturated Fat: 6
- Trans Fat: 0.4
- Carbohydrates: 36
- Fiber: 1
- Protein: 2
- Cholesterol: 55
Keywords: starbucks copycat recipes, lime frosted coconut bars, coconut white chocolate blondies, lime buttercream frosting, tropical dessert bars, easy coffeehouse treats, discontinued starbucks recipes
