Cold-Infused Roasted Macadamia Semifreddo with Tart Lime & Cocoa Nib Crunch

Instructions

1. 1

   Preheat your oven to 160°C (320°F). Spread 150 g raw macadamia nuts in a single layer on a rimmed quarter-sheet pan. Roast for 12 minutes, shaking the pan once midway, until the nuts turn an even golden amber and smell deeply toasted. Transfer immediately to a wide bowl to stop carryover cooking.

   12 min

   Tip: Macadamias have exceptionally high fat content and scorch quickly. Trust your timer and pull them the moment they turn amber.

2. 2

   Once cooled to room temperature, roughly crush the roasted macadamias with the bottom of a heavy skillet. Combine the crushed nuts with 360 g heavy whipping cream (36% milkfat) in a sealable glass container. Cover, label with painter's tape, and chill in the refrigerator for at least 8 hours (or up to 18 hours) to extract maximum toasted nut aromatics into the dairy fat.

   10 min

   Tip: Cold-infusion pulls pure, buttery nut essence without extracting bitterness or muddy off-flavors that heat can cause.

3. 3

   Line an 8.5x4.5-inch loaf pan with a double layer of plastic wrap, leaving a 2-inch overhang on all sides. Smooth the corners tightly with your fingers.

   4 min

   Tip: A light mist of water or oil on the metal helps the plastic wrap cling flush without frustrating air pockets.

4. 4

   In a small skillet set over medium-low heat, toss 35 g roasted cocoa nibs with 1 g fine sea salt for 3 minutes until fragrant. Off heat, stir in 1 g fresh lime zest. Pour onto a small plate to cool completely.

   4 min

   Tip: Warming the nibs wakes up their natural cocoa butter and adheres the salt and lime oils cleanly.

5. 5

   Pour the chilled macadamia-infused cream through a fine-mesh sieve set over a clean metal mixing bowl, pressing the solids lightly with a silicone spatula to yield approximately 300 g of rich, infused cream. Discard or snack on the strained nuts. Whip the infused cream on medium-high speed until it holds soft, pillowy peaks. Transfer the bowl to the refrigerator.

   6 min

   Tip: Do not whip to stiff peaks. Soft peaks fold into the sabayon effortlessly without deflating your air structure.

6. 6

   Set a heatproof glass bowl over a small saucepan of gently simmering water (ensure the bottom of the bowl does not touch the water). Whisk together 2 large eggs, 2 large egg yolks, 75 g granulated sugar, and 1 g fine sea salt. Whisk constantly for 6 minutes until the mixture is pale, quadrupled in volume, and reaches 74°C (165°F) on a digital probe thermometer.

   8 min

   Tip: Keep the water at a steady simmer, not a rolling boil. Whisk into the corners constantly so the eggs cook evenly.

7. 7

   Remove the sabayon bowl from the heat and whip on high speed with a hand mixer or stand mixer for 4 minutes until cool to the touch and thick enough to form ribbon trails off the beaters.

   5 min

   Tip: Cooling the sabayon is critical. Folding warm eggs into chilled whipped cream will immediately melt the fat emulsion.

8. 8

   Gently fold one-third of the chilled whipped macadamia cream into the cooled sabayon using a silicone spatula to lighten the base. Add the remaining whipped cream and fold until completely homogenous with no yellow streaks remaining. Scrape the batter into the prepared loaf pan, smoothing the surface with an offset spatula.

   4 min

   Tip: Work deliberately with broad strokes from bottom to top. We are not adding steps—just improving decisions.

9. 9

   Fold the plastic overhang loosely over the top of the semifreddo. Transfer to the coldest part of your freezer and freeze undisturbed for at least 6 hours, or overnight, until completely solid.

   360 min

   Tip: Freeze on a level surface. Let it cool and freeze solid. Future you deserves clean slices.

10. 10

    In a small saucepan, combine 60 g fresh lime juice and the remaining 25 g granulated sugar with the remaining 1 g fine sea salt. Simmer over medium-low heat for 4 minutes until reduced to a glossy, tart syrup. Stir in the remaining 1 g fresh lime zest and let cool completely.

    6 min

    Tip: Keep this syrup sharp. The high acidity cuts straight through the dense nut butter profile of the semifreddo.

11. 11

    Unmold the semifreddo by pulling gently on the plastic overhang onto a chilled cutting board. Peel away the plastic. Using a sharp chef's knife dipped in hot water and wiped clean between every slice, cut into 1-inch thick slabs. Plate immediately, spooning a ribbon of tart lime reduction across each slice and topping with 1.5 g flaky sea salt and the toasted cocoa nib crunch.

    5 min

    Tip: Wiping the blade clean between cuts ensures sharp, geometric edges. Serve immediately while frozen yet melting.