These cookies are one of those reliably happy things: buttery dough studded with sweet white chocolate and rich macadamia nuts, finished with a bright scatter of sea salt flakes. They bake up with edges that are just set and centers that stay tender, the kind of cookie people reach for again and again. I like them warm, but they travel and store well, too.

I’ll walk you through the exact ingredients and the straightforward method I use when I want consistent results. There are a few small rhythm points—packing the scoop, chilling the dough—that make a big difference. Follow them and you’ll be serving bakery-style cookies from your own oven.

No fluff, just practical tips, equipment notes, common mistakes, and a quick timeline so you can make them tonight. If you love a sweet-salty finish and a tender chew with a touch of crunch, these are worth the effort.

What Goes Into White Chocolate Macadamia Nut Cookies with Sea Salt

Ingredients

2 cups + 2 tablespoons all-purpose flour — the structure; measure by spooning into the cup and leveling for accuracy.
½ teaspoon baking soda — gives a gentle lift and lightness to the crumb.
¼ teaspoon kosher salt — balances sweetness and layers flavor into the dough.
¾ cup good quality butter (1.5 sticks) — use unsalted or adjust the salt in the recipe; butter quality affects flavor.
1 cup packed light brown sugar — adds moisture and a toffee-like depth.
½ cup granulated sugar — helps edges brown and adds snap.
1 large egg at room temperature — contributes structure and moisture; room temperature blends more evenly.
1 large egg yolk at room temperature — adds richness and tenderness.
2 teaspoons pure vanilla extract — main aromatic backbone; use pure for best flavor.
½ teaspoon pure almond extract — small amount boosts the nutty character and pairs beautifully with macadamias and white chocolate.
1 cup white chocolate chips — pockets of sweetness; fold in carefully to avoid melting.
½ cup chopped macadamia nuts — I like to use a sea salt dry roasted variety, which gives texture and a savory lift.
1 teaspoon sea salt flakes — sprinkled on warm cookies to amplify all the flavors with a clean, bright finish.

The Method for White Chocolate Macadamia Nut Cookies with Sea Salt

In a medium bowl, whisk together 2 cups + 2 tablespoons all-purpose flour, ½ teaspoon baking soda, and ¼ teaspoon kosher salt. Set the dry mixture aside.
In the bowl of a stand mixer fitted with the paddle attachment, combine ¾ cup (1.5 sticks) butter, 1 cup packed light brown sugar, and ½ cup granulated sugar. Mix on medium speed for about 30 seconds until the mixture is combined and slightly lighter in color. Scrape down the bowl.
Add 1 large egg (at room temperature), 1 large egg yolk (at room temperature), 2 teaspoons pure vanilla extract, and ½ teaspoon pure almond extract to the mixer. Mix on medium-low just until the wet ingredients are combined; do not overmix.
Add half of the flour mixture to the wet ingredients and mix on low to medium speed just until incorporated. Add the remaining flour mixture and mix on low just until incorporated. Scrape the bowl and ensure there are no large streaks of flour.
Using a sturdy spatula or wooden spoon, fold in 1 cup white chocolate chips and ½ cup chopped macadamia nuts until evenly distributed.
Press a piece of plastic wrap directly onto the dough in the mixing bowl to prevent a skin from forming. Refrigerate the dough for 45 minutes.
When the dough has chilled, preheat the oven to 325°F. Line a sturdy baking pan with parchment paper.
Using a 3-tablespoon scoop, tightly pack each portion of dough and place 6 scoops on the prepared baking pan, spacing them at least 2 inches apart. If desired, press additional white chocolate chips and chopped macadamia nuts onto the tops of the dough for presentation.
Bake the cookies in the preheated oven for about 14 minutes, or until the edges are just lightly browned and the centers are set.
Remove the pan from the oven and immediately sprinkle the warm cookies lightly with the 1 teaspoon sea salt flakes. Let the cookies cool on the baking pan for 5 minutes, then transfer them to a wire rack to cool completely. Repeat steps 8–10 with the remaining dough.

The Upside of White Chocolate Macadamia Nut Cookies with Sea Salt

These cookies are both classic and crowd-pleasing. The combination of white chocolate and macadamia is rich but not cloying; the final sprinkle of sea salt cuts through the sweetness and heightens every flavor. They’re elegant enough for a cookie swap, sturdy enough for a picnic, and simple enough to make after dinner.

Because the dough chills and is portioned before baking, you get consistent shapes and texture. The brown sugar keeps the centers moist, while the granulated sugar helps the edges crisp just right. If you need cookies that keep well, these hold up for several days at room temperature in an airtight container.

International Equivalents

Not every pantry has macadamias or white chocolate. If you need substitutions:

Macadamia nuts: swap with macadamia equivalents like chopped roasted cashews or blanched almonds for a similar buttery texture. Toast them lightly for extra depth.
White chocolate chips: if unavailable, use chopped white baking chocolate or a mix of milk chocolate and an extra tablespoon of brown sugar to balance sweetness.
Sea salt flakes: use coarse kosher salt sparingly if you don’t have flakes; a finer salt is less dramatic, so reduce the amount by about a third.
Butter: European-style butter will deepen flavor; stick butter is fine too. If you must use salted butter, omit the ¼ teaspoon kosher salt in the dry mix and reduce final flake salt.

Cook’s Kit

Stand mixer with paddle attachment (or a sturdy hand mixer or strong arm and a bowl).
Medium mixing bowl for dry ingredients.
Spatula or wooden spoon for folding chips and nuts.
3-tablespoon cookie scoop for even portions (or measure 3 tablespoons per cookie).
Baking pans lined with parchment paper — sturdy pans give more even heat.
Wire rack for cooling to avoid soggy bottoms.
Plastic wrap to press onto dough while chilling.

Errors to Dodge

Two easy mistakes will change the result: overmixing and skipping the chill.

Overmixing after you add the flour develops too much gluten and yields a tougher cookie. Mix just until the flour disappears. The short whip on the butter and sugars is enough; then fold, don’t beat, the chips and nuts.

Skipping the 45-minute chill increases spread significantly. The dough is soft; chilling firms the butter and helps the cookie hold a thicker, chewier center with tidy edges.

Season-by-Season Upgrades

Winter: fold in 1/4 teaspoon cinnamon or swap half the vanilla for a teaspoon of orange zest for brightness.
Spring: stir in 1/3 cup dried apricot or pineapple bits for a floral lift; reduce white chocolate by 2 tablespoons to balance sweetness.
Summer: serve slightly warm with a scoop of vanilla ice cream or drizzle a little melted dark chocolate over the cooled cookies.
Fall: add 2 tablespoons chopped toasted pecans to echo the nutty notes and fold in a tablespoon of molasses for depth.

Pro Perspective

Precision is helpful here. Weighing ingredients gives the most reliable results—especially flour. If you measure by volume, spoon flour into the cup instead of scooping to avoid compacting.

When packing the 3-tablespoon scoop, fill and press firmly so the dough holds together. That compactness minimizes air pockets and encourages a more uniform bake. Pressing a few extra chips and nuts on top before baking is a simple pro trick: it makes the cookie look like it came from a bakery and increases the contrast between sweet and savory.

Save It for Later

Storage is forgiving. Once fully cooled, store the cookies in an airtight container at room temperature for up to 4 days. Layer with parchment to prevent sticking. For longer storage, freeze baked cookies in a single layer on a sheet pan until firm, then transfer to a zip-top bag or airtight container for up to 2 months. Thaw at room temperature.

If you want to freeze the dough, portion it into scoops, place the scoops on a tray, freeze until solid, then transfer the scoops to a bag. When you’re ready, bake from frozen—add a minute or two to the baking time and watch for the telltale golden edges.

Your Questions, Answered

Q: Can I make these without a stand mixer?

A: Yes. Cream the butter and sugars by hand with a sturdy wooden spoon until combined and slightly lighter, then proceed. It takes a bit more elbow grease but works fine.

Q: Why both an egg and an egg yolk?

A: The whole egg gives structure; the extra yolk adds fat and emulsifiers for tenderness without thinning the dough too much.

Q: My cookies spread too much. What went wrong?

A: Likely the dough wasn’t cold enough, the oven runs cool, or you over-measured flour. Chill the dough, use a reliable thermometer for the oven, and measure flour correctly.

Make It Tonight

Quick timeline so you can make these after work or as a late-afternoon baking project:

60–75 minute plan

0–10 minutes: Pull butter to room temperature if needed, pre-measure ingredients, and whisk dry ingredients.
10–20 minutes: Cream butter and sugars in the mixer; add eggs and extracts; add flour; fold in chips and nuts.
20–65 minutes: Press plastic on the dough and chill for 45 minutes.
65–80 minutes: Preheat oven to 325°F, line pans, scoop dough, top with extra chips/nuts, and bake in batches for about 14 minutes each. Sprinkle with sea salt flakes right when they come out of the oven. Cool briefly on the pan, then move to a rack.

If you want to serve warm, bake the final batch about 10–15 minutes before your guests arrive so you can sprinkle salt and offer them hot from the oven. Leftovers reheat well for 8–10 seconds in the microwave or 3–4 minutes in a 325°F oven.

Make a batch. Share a few. Keep the rest in an airtight container and watch how quickly they disappear.