Melt the butter over low heat, just until it turns liquid, not bubbling. In a bowl, combine the melted butter, sugar, palm sugar, and salt. Whisk until the sugar dissolves and the mixture looks glossy. Add the egg and whisk again until smooth.
Sift in the flour, baking powder, and matcha powder. Use a spatula to fold everything together until you get a thick, even dough. Add the chocolate chips and roasted macadamias, and mix just until combined. Cover the bowl with cling wrap and chill the dough in the freezer for at least 30 minutes. This helps the cookies hold their shape and develop deeper flavor.
Once chilled, the dough will be easier to handle. Scoop about 60–65 grams of dough per cookie and roll into balls. Gently flatten each one and sprinkle a few flakes of sea salt on top. Bake in a preheated oven at 356°F (180°C) for 14–16 minutes, rotating the pan halfway for even baking. Cool the cookies on a wire rack. Enjoy your matcha cookies!
Notes
Use good-quality matcha - A bright green matcha (ceremonial or high-quality culinary grade) gives your cookies better color and a smoother, less bitter taste.
Don’t skip chilling the dough. - That 30-minute chill time helps the butter firm up, giving you chewy centers and crisp edges.
Mix gently once the flour goes in - Overmixing can make the cookies tough. Fold just until everything comes together; a few streaks are fine before adding your chocolate chips and macadamias.
Choose your chocolate wisely - Dark chocolate chips bring bold contrast to the earthy matcha, while white chocolate makes them creamy and sweet. Both work well, it just depends on your mood!
Add the sea salt last. Sprinkle the flakes right before baking so they don’t melt into the dough. The salt highlights the sweetness and gives each bite that irresistible flavor pop.
Watch the bake time. Matcha cookies can brown quickly, take them out while the center still looks a little soft. They’ll continue to set as they cool.