Step 1

Add the cream to a saucepan and heat over medium until hot and steaming. Meanwhile, roughly crush the 1 tablespoon of black peppercorns (I use a mortar and pestle; a cutting board and heavy skillet works too). Turn off the heat and stir in the crushed peppercorns. Let steep for 1 hour, stirring occasionally for even infusing. Meanwhile, finely crush the remaining ½ teaspoon of peppercorns and set aside.

Step 2

Strain the cream into a large bowl (the same one you’ll whip in) and discard the soaked peppercorns. Add the sugar, vodka, and salt and stir until the sugar has dissolved. Stir in the finely crushed peppercorns. Cover and refrigerate until very cold, at least a few hours or up to 1 day.

Step 3

Use a whisk (this is a workout) or hand mixer to whip to very soft peaks. You can also do this in a stand mixer if you prefer.

Step 4

Transfer the whipped base to a freezer-safe container—I like using a loaf pan—and cover. Freeze for 8 to 12 hours, until scoopable. (Like all ice creams, this is best freshly frozen; if you’re eating it a day or two later, once it’s fully firm, let it sit out for a few minutes to soften slightly before scooping.)

Step 5

Serve with a pinch of flaky salt sprinkled on top, plus some brittle, if you’re including it.

Step 6

Smash or grind the peppercorns, aiming for a mix of coarse and fine. Line a sheet pan with parchment paper. (Or, if you’re comfortable with caramel-making, do this while the sugar is caramelizing.)

Step 7

Add the sugar to a small saucepan and pour 3 tablespoons of water on top. (If any sugar granules get caught on the sides of the pan, use a wet brush or fork to wash them down.) Bring to a boil over medium-high heat and cook until it turns the color of dark maple syrup, keeping a close eye after the first few minutes; you can gently swirl the pan to encourage even cooking but avoid stirring, which can cause crystallization.

Step 8

As soon as the sugar caramelizes, cut the heat and use a silicone spatula to stir in the peppercorns. Scrape this mixture onto the lined sheet pan, quickly spreading it as thinly as possible. Immediately sprinkle all over with flaky salt.

Step 9

Let cool completely, about 15 minutes, before breaking and smashing into pieces, then transfer to an airtight container, where it will keep for at least 1 week.