Guava Jam Coconut Macadamia Oat Bars

Featured in: Comfort Baking

These tropical-inspired dessert bars feature a buttery oat crust layered with vibrant guava jam, then topped with a golden crumble of shredded coconut, roasted macadamia nuts, and old-fashioned oats. The combination creates a perfect balance of sweet and nutty flavors with a satisfying texture—crisp on top, tender in the middle, and fruit-sweet throughout.

The lime juice brightens the guava filling, while toasted coconut and macadamias add rich, tropical depth. These versatile bars work wonderfully for brunch, afternoon tea, or as a light dessert with vanilla ice cream.

Updated on Thu, 05 Feb 2026 22:34:18 GMT
Golden-brown Guava Jam Bars with coconut-macadamia oat crumble, served on a rustic platter. Save
Golden-brown Guava Jam Bars with coconut-macadamia oat crumble, served on a rustic platter. | butterhearth.com

Transport your taste buds to a tropical paradise with these Guava Jam Bars. This medium-difficulty dessert offers a delightful fusion of Western crumble bars and vibrant tropical flavors, making it a standout vegetarian treat. With a golden crust and a sticky, sweet center, these bars are as beautiful to look at as they are to eat.

Golden-brown Guava Jam Bars with coconut-macadamia oat crumble, served on a rustic platter. Save
Golden-brown Guava Jam Bars with coconut-macadamia oat crumble, served on a rustic platter. | butterhearth.com

These bars are more than just a snack; they are a buttery, tropical-inspired experience. Layered with softened guava paste or jam and topped with a coconut-infused crumble, they bring a sunny flair to any dessert table or afternoon coffee break.

Ingredients

  • Crust and Crumble
  • 1 cup (130 g) all-purpose flour
  • 1 cup (100 g) old-fashioned rolled oats
  • 1/2 cup (100 g) granulated sugar
  • 1/3 cup (65 g) packed light brown sugar
  • 1/2 teaspoon salt
  • 1/2 teaspoon ground cinnamon
  • 1/2 cup (115 g) unsalted butter, melted
  • 1/2 cup (40 g) unsweetened shredded coconut
  • 1/2 cup (60 g) roasted macadamia nuts, roughly chopped
  • Filling
  • 1 cup (320 g) guava jam or guava paste, softened
  • 1 tablespoon fresh lime juice
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Instructions

Step 1
Preheat oven to 350°F (175°C). Line an 8-inch (20 cm) square baking pan with parchment paper, leaving an overhang for easy removal.
Step 2
In a large bowl, combine the flour, oats, granulated sugar, brown sugar, salt, and cinnamon. Stir in melted butter until the mixture forms moist crumbles. Add coconut and chopped macadamia nuts, mixing to combine.
Step 3
Reserve 1 cup of the mixture for the topping. Press the remaining mixture evenly into the bottom of the prepared pan to form the crust.
Step 4
In a small bowl, stir together guava jam and lime juice until smooth. Spread evenly over the crust.
Step 5
Sprinkle the reserved crumble mixture evenly over the jam layer.
Step 6
Bake for 30–35 minutes, until the topping is golden brown and the jam is bubbling at the edges.
Step 7
Let cool completely in the pan. Lift out using the parchment overhang and cut into 16 bars.

Zusatztipps für die Zubereitung

For an even deeper flavor profile, lightly toast the shredded coconut and the chopped macadamia nuts in a dry pan over medium heat for a few minutes before adding them to the crumble mixture. This enhances the nutty aroma and adds extra crunch.

Varianten und Anpassungen

If guava jam is unavailable in your local store, you can easily substitute it with apricot or raspberry jam for a different but equally delicious fruit bar. The buttery oat base works beautifully with almost any high-quality fruit preserve.

Serviervorschläge

To turn these bars into a decadent plated dessert, serve them warm with a generous scoop of vanilla ice cream. The cold creaminess of the ice cream contrasts wonderfully with the toasted coconut and sticky guava filling.

Warm Guava Jam Bars showcase a sticky guava filling and toasted coconut macadamia oat crumble. Save
Warm Guava Jam Bars showcase a sticky guava filling and toasted coconut macadamia oat crumble. | butterhearth.com

Each of these 16 bars contains approximately 195 calories, 10g of total fat, 25g of carbohydrates, and 2g of protein. Whether enjoyed as a midday treat or a festive dessert, these bars are a delicious way to bring the tropics home.

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Recipe Questions

Can I use a different jam if guava isn't available?

Absolutely. Apricot, raspberry, or pineapple preserves work beautifully as alternatives. Choose something with similar sweetness and fruit-forward flavor to maintain the tropical profile.

Should I toast the coconut and macadamias before adding them?

Toasting isn't required but highly recommended. Lightly toasting the coconut and macadamias at 350°F for 5-7 minutes before incorporating them into the crumble enhances their natural nuttiness and adds deeper flavor to the finished bars.

How do I know when the bars are done baking?

The bars are ready when the crumble topping is golden brown and you see the jam bubbling slightly at the edges. The center should feel set, not jiggly. If the top browns too quickly, tent with foil for the last 5-10 minutes.

Why is cooling completely essential before cutting?

The jam layer needs time to set as it cools. Cutting while warm causes the filling to ooze and the crumble to crumble apart. Letting them cool completely—ideally 2-3 hours or refrigerated—ensures clean, neat squares.

Can I make these bars gluten-free?

Yes. Substitute the all-purpose flour with a 1:1 gluten-free flour blend and ensure your oats are certified gluten-free. The texture remains remarkably similar, though the bars may be slightly more delicate.

What's the best way to store these bars?

Store in an airtight container at room temperature for up to 3 days, or refrigerate for up to a week. Layer between parchment paper to prevent sticking. These also freeze well—wrap individually and freeze for up to 3 months.

Guava Jam Coconut Macadamia Oat Bars

Buttery bars with sweet guava jam and golden coconut-macadamia oat crumble topping.

Prep duration
20 min
Time to cook
35 min
Complete duration
55 min
Created by Grace Mitchell


Skill Level Medium

Heritage Fusion Tropical

Output 16 Portions

Dietary considerations Meat-Free

Components

Crust and Crumble

01 1 cup all-purpose flour
02 1 cup old-fashioned rolled oats
03 1/2 cup granulated sugar
04 1/3 cup packed light brown sugar
05 1/2 teaspoon salt
06 1/2 teaspoon ground cinnamon
07 1/2 cup unsalted butter, melted
08 1/2 cup unsweetened shredded coconut
09 1/2 cup roasted macadamia nuts, roughly chopped

Filling

01 1 cup guava jam or guava paste, softened
02 1 tablespoon fresh lime juice

Directions

Stage 01

Prepare Baking Pan: Preheat oven to 350°F. Line an 8-inch square baking pan with parchment paper, leaving an overhang on all sides for easy removal.

Stage 02

Mix Dry Ingredients: In a large bowl, combine flour, oats, granulated sugar, brown sugar, salt, and cinnamon. Stir in melted butter until the mixture forms moist crumbles. Add coconut and chopped macadamia nuts, mixing until evenly distributed.

Stage 03

Divide Crumble Mixture: Reserve 1 cup of the crumble mixture for topping. Press the remaining mixture evenly into the bottom of the prepared pan to form an even crust.

Stage 04

Prepare Filling: In a small bowl, stir together guava jam and lime juice until smooth and well combined.

Stage 05

Assemble Bars: Spread the guava jam mixture evenly over the crust layer. Sprinkle the reserved crumble mixture evenly over the jam layer.

Stage 06

Bake: Bake for 30 to 35 minutes, until the topping is golden brown and the jam is bubbling at the edges.

Stage 07

Cool and Cut: Let cool completely in the pan. Lift out using the parchment overhang and cut into 16 equal bars.

Necessary tools

  • 8-inch square baking pan
  • Large mixing bowl
  • Small mixing bowl
  • Measuring cups and spoons
  • Parchment paper
  • Spatula
  • Knife

Allergy details

Review each component for potential allergens and consider consulting with a healthcare provider if you're unsure about certain ingredients.
  • Contains wheat and gluten
  • Contains dairy from butter
  • Contains tree nuts including macadamia

Nutritional information (per portion)

These values are estimates only and shouldn't replace professional medical guidance.
  • Energy Value: 195
  • Fats: 10 g
  • Carbohydrates: 25 g
  • Protein Content: 2 g