Peach Ripple Ice Cream, the Treat to Beat the Summer Heat

Homemade ice cream that’s smooth and not grainy can be tricky to achieve. The texture of ice cream hinges on a delicate balance of dairy, fat, sugar, and sometimes a stabilizer such as pectin (which is already naturally present in peaches). As the mixture freezes, ice crystals form (dairy is mostly water), so the key is to freeze the mixture in a way that minimizes the impact of those crystals. 

With fruit in the mix, a smooth texture becomes even harder to achieve. Peaches are full of water—about 88 percent—so the addition of peaches to ice cream will increase the water content in the custard base, thereby increasing the chance of large ice crystals marring the texture. 

Usually, higher-fat ingredients such as cream and/or eggs produce more subdued crystals and make for a smoother ice cream, but using all heavy cream can mute the bright flavor of peaches. Using a combination of half-and-half and sour cream instead (no eggs needed in this recipe) creates a base that’s rich enough to taste luxurious but also tangy and light enough to allow the peach flavor to shine. 

Invert sugars, such as the light corn syrup in this recipe, help reduce ice crystallization by increasing the viscosity of water and lowering the freezing point of the mix. The pectin in peaches does the same thing. Adding a splash of vodka (a test kitchen trick for making ice cream) lowers the freezing point of the mixture to keep things softer and more scoopable (but you can omit it if you prefer). 

To get started, macerate chopped peaches in sugar to break down and release their flavorful juice. By simmering the strained juice until it’s thick and syrupy, you’ll drive off some of that excess water (for a smoother ice cream) and intensify the peach flavor. Add it to the base of half‑and-half, sour cream, corn syrup, vodka, and some (but not all!) of the pureed macerated peaches. Once chilled and churned, the mixture will be thick enough to spread into a loaf pan.

Here’s where the ripple happens: You’ll take some of that reserved puree and cook it down with sugar and lemon juice into a jammy, intensely peachy sauce. By layering this sauce with the churned ice cream in the loaf pan, giving it a swirl with a skewer, and then freezing it until it’s scoopable, you’ll guarantee bold peach flavor throughout. 

Once the wait is over, you’re ready to scoop it into bowls or cones and celebrate a true taste of the season. Summer!