01 -
Preheat oven to 350°F. Line a 9x13 inch baking dish with parchment paper.
02 -
Combine graham cracker crumbs and melted butter. Press firmly into bottom of baking dish to form an even crust.
03 -
Spread raspberry preserves evenly over the crust.
04 -
Distribute shredded coconut, white chocolate chips, and chopped macadamia nuts (if using) evenly over raspberry layer.
05 -
Drizzle sweetened condensed milk uniformly over entire surface.
06 -
Sprinkle lemon zest evenly atop layers for added brightness if desired.
07 -
Bake in preheated oven for 25 to 30 minutes, or until the top is golden brown and set.
08 -
Allow bars to cool completely in pan before cutting into 16 portions.