Gochugaru and Sesame

Gochugaru—Korean chili flakes—has this fruity, sweet heat that’s completely different from cayenne or regular red pepper flakes. Combined with the earthy nuttiness of black sesame and the crunch of sesame brittle, you get something that’s warming without being aggressive. And surprisingly addictive.

The caramel swirl gets flecked with red from the gochugaru, which looks pretty incredible and gives you these ribbons of gentle heat throughout. People will lose their minds trying to figure out what’s in this.

Ingredients

Base:

• 2 cups heavy cream
• 1 cup whole milk
• 3/4 cup sugar
• 5 egg yolks
• 3 tbsp black sesame paste
• 1 tsp toasted sesame oil
• Pinch of salt

Gochugaru Caramel Swirl:

• 1/2 cup sugar
• 2 tbsp water
• 1/4 cup heavy cream (warmed)
• 1 tbsp butter
• 1 tsp gochugaru (Korean chili flakes)
• Tiny pinch of salt

Black Sesame Brittle:

• 1/4 cup sugar
• 2 tbsp black sesame seeds (already toasted)
• Pinch of salt

Instructions

Black Sesame Brittle (make this first):

Line a baking sheet with parchment. Heat the sugar in a dry pan over medium heat until it melts and turns amber, swirling the pan occasionally. Don’t stir with a spoon—just swirl. (I know you want to stir. Don’t.)

Here’s why: when you stir sugar as it melts, you introduce air bubbles and can trigger crystallization, which turns your smooth caramel into a grainy mess. Swirling the pan distributes heat evenly without those risks. The sugar will look weird and clumpy as it starts melting—that’s completely normal. Just keep swirling gently and it’ll eventually turn into smooth liquid amber. Trust the process.

Once it hits that golden amber color, quickly stir in the toasted black sesame seeds and salt. Pour onto the parchment immediately—this shit sets up FAST. Like, embarrassingly fast. Cool completely until it’s hard, then break into small pieces about chocolate chip size.

Gochugaru Caramel Swirl:

Have your warmed cream, butter, and gochugaru measured and sitting right there next to the stove—caramel moves fast once it’s ready, and you don’t want to be scrambling around looking for things.

Combine sugar and water in a light-colored saucepan. This is important, friend—a light pan lets you actually see the color develop as the sugar caramelizes. With a dark pan you’re basically guessing, which is a great way to burn your caramel and waste a bunch of ingredients.

Heat over medium-high WITHOUT STIRRING until it reaches deep amber—think copper penny color. This takes about 7-10 minutes, and you’ll spend most of that time just staring at it waiting for something to happen. That’s normal. Don’t walk away to check your phone. The moment it starts to change color, it accelerates rapidly—stay close.

Pull it off the heat and carefully pour in the warmed cream. It’ll bubble violently and make noises like it’s auditioning for a volcano documentary. This is totally normal—the temperature difference causes instant steam. Just whisk until smooth. Don’t be a hero and try to taste it—it’s roughly the temperature of lava right now.

Add the butter and gochugaru, whisking thoroughly. The gochugaru should distribute evenly, creating this gorgeous red-flecked caramel with gentle heat. Add a tiny pinch of salt to balance the sweetness.

Let it cool to room temperature, then refrigerate. Should be thick but pourable when cold—honey consistency.

Taste it carefully—should be sweet with gentle warming heat, not aggressive spice. If it’s too mild for your taste, you can add another 1/2 tsp gochugaru and stir thoroughly. Remember that cold dulls heat significantly, so what seems mild when warm will be even milder when frozen. Err on the side of slightly too spicy now—freezing knocks the heat on its ass.

Make Custard:

Heat cream and milk until steaming. Make your custard with the egg yolks and sugar using the standard method to 170-175°F. If you need a refresher on tempering, check the custard fundamentals section—but you’ve probably got this by now.

Integrate Black Sesame:

Here’s the trick, chief, and this is important: Take 1/2 cup of the warm custard and whisk it with the black sesame paste in a separate bowl until it’s completely smooth—no streaks, no lumps. Then whisk this back into the main custard.

Why this two-step process? Black sesame paste is thick and oily, and if you dump it straight into the full custard, it tends to seize up into these stubborn lumps that won’t break down no matter how hard you whisk. By first mixing it with a small amount of warm liquid, you’re essentially creating a slurry that integrates smoothly. It’s the same principle as tempering chocolate or blooming gelatin—you’re gradually adjusting the texture and temperature so everything combines without fighting you. Science. It works.

You’ll know it’s done right when the custard is uniformly gray-tan with no darker streaks or visible clumps. Add the toasted sesame oil and salt.

Strain through a fine-mesh sieve. Cool over an ice bath. Refrigerate at least 4 hours.

Churn:

Churn until it hits soft-serve consistency—it should hold its shape on a spoon and look thick and creamy. The black sesame makes the color unusual, so don’t judge doneness by how it looks compared to a standard custard. Go by texture.

Layer into your storage container: spread one-third of the ice cream, drizzle some of that gochugaru caramel, scatter brittle pieces. Repeat twice more. Gently swirl with a knife to create ribbons—don’t overmix or you’ll lose the marbling effect. You want distinct ribbons, not a uniform color.

Freeze 4+ hours.

Notes

Finding gochugaru:

Look for it at Korean grocery stores like H Mart, Joongboo, or 99 Ranch, or just order it online. It’s worth seeking out—the flavor is distinctly Korean, with fruity, sweet heat rather than just straight-up spiciness. Comes in coarse and fine grinds; either works here.

If you absolutely can’t find it, you could try a mix of paprika and a tiny bit of cayenne, but honestly? It won’t taste the same. Gochugaru is its own thing with a unique flavor profile that doesn’t have a perfect substitute. That said, if you go the substitution route, try 3/4 tsp sweet paprika plus 1/4 tsp cayenne and adjust from there. Just know you’re losing that characteristic fruitiness that makes this recipe actually fucking work.

Black sesame:

Common in Korean desserts—from kkaetteok (sesame rice cake) to heukimja-juk (black sesame porridge). Has a deeper, more intense flavor than white sesame—almost chocolatey, with this earthy richness that makes people go “what IS that?” You can find black sesame paste at Asian markets, often labeled as “black sesame sauce” or “black tahini.” Some brands are sweetened—check the label and go for unsweetened if you can find it.

If you need to toast your own black sesame seeds for the brittle, do it in a dry skillet over medium heat for 3-4 minutes, shaking the pan frequently, until they smell nutty and start to pop a bit. They won’t change color much because, well, they’re already black. You’re going by smell and sound here—when your kitchen smells like a good sesame oil, you’re there.

Toasted sesame oil is potent, dude—use it sparingly. A little goes a long way in providing that authentic nutty depth. It’s made from toasted sesame seeds and has this intense, almost smoky aroma. Don’t substitute regular sesame oil (the pale kind used for cooking)—it’s a completely different product with about a tenth of the flavor.

About the heat level:

Start with 1 tsp of gochugaru in the caramel, taste it, and add more if you want. The heat should be gentle and fruity, not aggressive. Remember that cold dulls spice significantly, so what seems mild when warm will be even milder frozen. This is designed to be warming rather than burn-your-face-off spicy—you want people to notice the heat after a few bites, not immediately. The gochugaru should whisper, not shout.

Make-ahead strategy:

The brittle can be made up to 5 days ahead and stored in an airtight container at room temperature—it stays crunchy indefinitely as long as you keep moisture out. The gochugaru caramel can be made 3-4 days ahead and refrigerated (bring it to room temp before using so it’s pourable, or warm it gently). The custard base benefits from overnight chilling anyway, so plan to make components one day and churn the next. Honestly the best move is to knock out the brittle and caramel on a lazy afternoon, make the custard that evening, and churn the next day.

Cultural Context:

The combination of sesame and chili is deeply rooted in Korean cuisine—think gochujang (fermented chili paste with sesame), sesame-dressed banchan, or the sesame oil drizzle that finishes practically everything. This recipe takes that familiar pairing and reframes it as dessert, which sounds weird until you remember that Korean shaved ice (bingsu) already plays with sweet red bean, sesame, and warming flavors. We’re not inventing a combination here—we’re translating one.

What it tastes like:

Nutty and earthy from the black sesame, with pockets of fruity, warming heat from the gochugaru caramel. The sesame oil adds depth without being identifiable—it just makes everything taste more complete, like it’s been seasoned properly. The brittle adds textural crunch that keeps things interesting. Complex and surprisingly moreish. This is the kind of flavor that makes people take a second bite just to figure out what the hell is happening, and then a third because they’ve decided they like it. Then they eat half the container and pretend they didn’t.