These easy Piña Colada Bars are made with a buttery shortbread crust, a sweet pineapple-coconut filling, and an optional rum glaze. The recipe makes 24 bars in a 9 x 13-inch pan, with 20–25 minutes of preparation, 40–45 minutes of baking, and at least 1 hour of cooling before slicing.
Every bite tastes like a tropical dessert vacation: rich butter and confectioners’ sugar create a tender crust, while crushed pineapple and sweetened coconut bring bright fruitiness and chewy texture. Add macadamia nuts for gentle crunch and a rum glaze for classic piña colada flavor, or leave the alcohol out for a family-friendly treat.
Jump to RecipeWhy You’ll Love This Recipe
Piña Colada Bars deliver the flavors of a classic tropical cocktail in a simple baked dessert. They have a crisp-tender, buttery shortbread base and a moist pineapple-coconut layer that sets firmly enough to slice but stays pleasantly soft.
This recipe is especially useful when you need a dessert for a crowd because one 9 x 13-inch pan produces 24 squares. The bars are attractive on a dessert tray, easy to transport, and just as welcome at a summer gathering as they are during the holidays.
The optional additions let you choose the personality of the dessert. Macadamia nuts add crunch, while a rum glaze gives the bars a fragrant finish; without rum, the pineapple, coconut, vanilla, and butter still provide plenty of flavor.
For another layered treat to serve beside these tropical squares, try our peppermint magic bars when you are planning a festive dessert spread.
Ingredients You’ll Need
The crust uses only four ingredients, but each one has an important role. Flour provides structure, confectioners’ sugar sweetens the base without creating a gritty texture, softened butter binds the dough, and salt keeps the flavor balanced.
- All-purpose flour: You will need 2 cups for the crust and another 1/4 cup for the filling.
- Butter: Use 1 cup of unsalted butter, softened so it blends evenly into the crumbly crust dough.
- Pineapple: An 8-ounce can of crushed pineapple must be drained very well before it goes into the filling.
- Coconut: Sweetened shredded coconut supplies the signature chewy texture and gentle sweetness.
- Eggs and sugar: These create the custardy structure that holds the fruit and coconut together.
- Macadamias: The 1/4 cup of chopped nuts is optional, but adds a buttery crunch.
- Rum glaze: Confectioners’ sugar, 1–2 tablespoons of rum, and a small amount of pineapple juice or milk make a quick finishing drizzle.
Measure the pineapple after opening the can, then place it in a fine sieve and press it firmly with a spoon. Excess liquid is the most common cause of a loose filling or soggy crust, so take a few extra minutes to drain it thoroughly.
If you enjoy fruit-forward baking, our bakery-style blueberry muffins make another excellent choice for a brunch table.
How to Make It Step-by-Step
Step 1: Heat the oven to 350°F (175°C), then line a 9 x 13-inch baking pan with parchment paper. Leave an overhang on two sides so you can lift the cooled slab out without disturbing the edges.
Step 2: Add the flour, confectioners’ sugar, softened butter, and salt to a mixing bowl. Work the ingredients together until a soft, crumbly dough forms, then press it firmly and evenly across the bottom of the pan.
Step 3: Bake the crust for 15–18 minutes. Look for edges that are just beginning to turn golden; the center does not need to be fully browned because it will bake again with the filling.
Step 4: While the crust bakes, whisk the eggs and granulated sugar in a clean bowl. Add the flour, baking powder, salt, and vanilla, and continue whisking until the mixture is smooth and evenly combined.
Step 5: Fold the well-drained crushed pineapple, sweetened shredded coconut, and optional macadamia nuts into the egg mixture. Folding gently distributes the fruit without breaking it down into a watery puree.
Step 6: Spread the pineapple-coconut mixture over the hot crust as soon as it comes from the oven. Use a spatula to reach the corners and create an even layer so every bar has a similar ratio of crust to filling.
Step 7: Return the pan to the oven and bake for another 25–30 minutes, for a total bake time of 40–45 minutes. The top should be lightly golden and the center should look set rather than liquid when the pan is gently nudged.
Step 8: Cool the bars completely in the pan for at least 1 hour. For especially neat portions, refrigerate them briefly after cooling, then lift the parchment and cut the slab into 24 squares.
Step 9: If using the glaze, whisk the confectioners’ sugar with 1–2 tablespoons of dark or light rum. Add 1–2 teaspoons of pineapple juice or milk, a little at a time, until the glaze is thin enough to drizzle over the cooled bars.
Pro Tips for Perfect Bars
Start with softened butter, not melted butter. Soft butter combines with the flour and sugar to create the intended shortbread texture, while melted butter can make the crust spread and bake unevenly.
Press the crust with the flat bottom of a measuring cup or glass. Even pressure matters because a thin corner will overbake before the center is ready, while a thick area may remain too soft.
Do not skip the hot-crust step. Spreading the filling over the freshly baked base helps the two layers bond as they continue baking.
- Check the crust at 15 minutes and remove it when the edges are barely golden.
- Press pineapple firmly in a sieve to remove excess juice.
- Do not slice while warm; the egg-based filling needs time to set.
- Use a sharp knife and wipe the blade between cuts for clean squares.
- Make the glaze thin enough to drizzle, but not so thin that it disappears into the top.
For a different bar-style dessert with a creamy fruit center, compare the texture with our cherry cheesecake bars. Both are excellent choices when you want individually portioned sweets.
Serving Ideas and Variations
Serve the bars at room temperature so the crust is tender and the pineapple filling is fragrant. A light drizzle of glaze is enough to make them look special, but you can also dust the cooled tops with a small amount of confectioners’ sugar if you are skipping rum.
For a party platter, arrange the squares in paper liners or on a large white serving plate. The golden tops look beautiful with a few coconut shreds scattered around the platter, while small pineapple wedges can signal the tropical flavor.
To make the recipe alcohol-free, omit the rum and use pineapple juice or milk in the glaze. The bars themselves contain no required alcohol, so this simple change makes them suitable for children and guests who avoid spirits.
Macadamias are optional and can be left out without changing the basic formula. If you like contrasting textures, keep them in; if you prefer a smooth, chewy filling, the pineapple and coconut are delicious on their own.
When planning a larger dessert table, these bars pair nicely with our Christmas tree pastries for a festive assortment of different shapes and textures.
Storage and Make-Ahead Advice
Allow the bars to cool completely before covering them. Store them in an airtight container, separating layers with parchment if needed, and keep them refrigerated if your kitchen is warm or if you prefer a firmer filling.
Chilling briefly before slicing is particularly helpful because the pineapple-coconut layer continues to firm as it cools. It also makes the glaze less likely to smear across the knife.
These bars are well suited to make-ahead baking. Prepare them earlier in the day, cool them fully, add the glaze close to serving time, and cut them just before placing them on a platter.
Keep the glaze separate if you plan to store the bars for several days. This preserves the clean finish and lets you refresh the dessert with a new drizzle shortly before serving.
For a sweet-and-savory option to balance a dessert table or party buffet, serve a small dish of hot pepper jelly with crackers and cream cheese.
Easy and Delicious Piña Colada Bars
Ingredients
Method
- Heat the oven to 350°F (175°C). Line a 9 x 13-inch baking pan with parchment paper, leaving enough paper hanging over the sides to lift out the cooled bars.
- Mix the flour, confectioners’ sugar, softened butter, and salt until a soft, crumbly dough forms. Press it firmly and evenly into the prepared pan.
- Bake the crust for 15–18 minutes, until the edges are just beginning to turn golden. Keep the crust hot when the filling is ready.
- Whisk the eggs and granulated sugar together in a bowl. Whisk in the flour, baking powder, salt, and vanilla until the mixture is smooth.
- Fold in the very well-drained crushed pineapple, shredded coconut, and optional chopped macadamia nuts. Spread the filling over the hot crust.
- Bake for another 25–30 minutes, until the center is set and the top is lightly golden. Cool the bars completely in the pan for at least 1 hour before cutting.
- For the glaze, whisk confectioners’ sugar with rum and enough pineapple juice or milk to make a pourable drizzle. Drizzle over the cooled bars, then cut into 24 squares.
Notes
Final Thoughts
These Piña Colada Bars are a reliable, crowd-friendly dessert with a wonderful contrast of textures. The buttery shortbread crust supports a sunny pineapple-coconut filling, and the optional rum glaze adds a polished finish without making the recipe complicated.
For the best results, focus on the two details that matter most: drain the pineapple exceptionally well and let the baked bars cool completely before cutting. Those small steps produce firm, tidy squares with a tender crust and a beautifully set center.
Make the alcohol-free version for family gatherings, add macadamias for crunch, or use the rum glaze when you want a more classic cocktail-inspired flavor. However you serve them, these 24 tropical bars are easy to prepare, easy to share, and sure to disappear quickly.
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