Prep your tray: Line a baking sheet with parchment paper or a silicone mat.
Clear space in the fridge or freezer so it’s ready to chill the nuts.
Toast the nuts (optional but recommended): For deeper flavor, spread macadamia nuts on a dry skillet over medium heat for 3–4 minutes, stirring often, until fragrant. Let them cool completely.
Melt the chocolate: Add chopped chocolate and coconut oil to a microwave-safe bowl. Heat in 20–30 second bursts, stirring between each, until smooth.
Or melt gently using a double boiler.
Sweeten and flavor: Whisk in powdered erythritol, vanilla, and a pinch of salt. Taste and adjust sweetener. If it thickens too much, warm it briefly to loosen.
Coat the nuts: Stir macadamias into the chocolate until fully coated.
Use a fork to lift them out, letting excess chocolate drip off.
Arrange and top: Place coated nuts on the prepared tray. If using, sprinkle flaky salt, coconut, or crushed raspberries while the coating is still wet.
Chill to set: Refrigerate for 20–30 minutes, or freeze for 10–15, until the chocolate is firm.
Optional double coat: For a thicker shell, repeat the dipping and chilling process once more.
Portion and store: Break apart any clusters if needed. Transfer to an airtight container and keep chilled.