Guava Jam Coconut Macadamia Oat Bars (Printable)

Buttery bars filled with sweet guava jam and topped with a crunchy coconut, macadamia, and oat crumble topping.

# Ingredient List:

→ 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

10 - 1 cup guava jam or guava paste, softened
11 - 1 tablespoon fresh lime juice

# How to Make:

01 - Preheat oven to 350°F. Line an 8-inch square baking pan with parchment paper, leaving an overhang for easy removal.
02 - 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.
03 - Add coconut and chopped macadamia nuts to the crumble mixture, mixing thoroughly to combine.
04 - Reserve 1 cup of the crumble mixture for topping. Press the remaining mixture evenly into the bottom of the prepared pan to form the crust.
05 - In a small bowl, stir together guava jam and lime juice until smooth.
06 - Spread the guava mixture evenly over the crust layer.
07 - Sprinkle the reserved crumble mixture evenly over the jam layer.
08 - Bake for 30 to 35 minutes, until the topping is golden brown and the jam is bubbling at the edges.
09 - Let cool completely in the pan. Lift out using the parchment overhang and cut into 16 equal bars.

# Expert Tips:

01 -
  • The texture contrast between crispy toasted oat crumble and jammy center feels indulgent but the ingredient list keeps things honest.
  • Macadamia nuts give you that restaurant-quality flavor without needing special equipment or techniques.
  • These bars actually improve after a day or two, so you can make them ahead and feel prepared for once.
02 -
  • If your guava jam is very thick straight from the jar, warming it in the microwave for 15 seconds before mixing with lime juice makes spreading infinitely easier.
  • The oven temperature matters more here than you'd think; too hot and your crumble browns while the jam stays thick, too cool and everything bakes unevenly.
  • Toasting your coconut and macadamia nuts together for 5 minutes at 325°F before adding them to the crumble transforms the bars from good to genuinely memorable.
03 -
  • If your pan is dark or nonstick, reduce the oven temperature by 25 degrees because these pans conduct heat more aggressively and your crumble will burn before the jam sets.
  • Cut your bars with a sharp knife dipped in hot water and wiped clean between cuts; it sounds fussy but it makes the difference between clean edges and ragged ones.
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