Preheat oven to 350 F.
Line a 9 x 9-inch pan with parchment paper.
Add melted butter, dark brown sugar, light brown sugar, eggs and yolk, almond butter, vanilla paste, sea salt, and ground cinnamon to a mixing bowl. Whisk until smooth.
Add the flour and baking powder to a separate bowl. Whisk to combine. Add flour mixture to sugar mixture. Fold in with large spatula.
Fold in 3/4 cup macadamia nuts, and 3/4 cup chocolate chunks or chips.
Spread the batter into the prepared pan using a spatula. Top with remaining macadamia nuts, and chocolate chunks or chips.
Bake in preheated oven until cooked through and golden brown on top, 30 to 35 minutes.
Insert a toothpick into the center of the blondies. It should come out clean.
Remove from oven and place on wire rack to cool.
Slice into individual dessert bars.
Store at room temperature for 3 to 4 days in an airtight container. Freeze baked bars up to 1 month.