Creamy Blackberry Lemon Ice Cream

Quick Recipe Version (TL;DR)

• Yield: 8 servings, about 1 quart
• Prep Time: 25 minutes
• Cook Time: 20 minutes
• Total Time: 8 hours 10 minutes, including chilling, churning, and freezing

Quick Ingredients

• 4 cups (600 g) fresh or frozen blackberries
• 1 cup (200 g) granulated sugar, divided
• 1/4 cup (60 ml) fresh lemon juice, divided
• 1 tablespoon finely grated lemon zest
• 2 cups (480 ml) heavy cream
• 1 cup (240 ml) whole milk
• 5 large egg yolks
• 1/4 teaspoon fine sea salt
• 1 teaspoon pure vanilla extract

Do This

• 1. Simmer blackberries, 1/2 cup sugar, and 2 tablespoons lemon juice for 8 to 10 minutes; strain, then stir in lemon zest and remaining 2 tablespoons lemon juice.
• 2. Reserve 1/4 cup blackberry lemon concentrate for swirling and chill the rest.
• 3. Heat cream, milk, 1/4 cup sugar, and salt to 165°F.
• 4. Whisk egg yolks with remaining 1/4 cup sugar, temper with hot dairy, then cook to 170°F to 175°F.
• 5. Strain custard, stir in vanilla, cool over an ice bath, and chill at least 4 hours.
• 6. Whisk 1 cup blackberry lemon concentrate into the chilled custard and churn for 20 to 25 minutes.
• 7. Layer with reserved concentrate, swirl gently, and freeze at 0°F for 3 to 4 hours before scooping.

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Why You’ll Love This Recipe

• Bright and creamy: Fresh lemon zest and juice cut through the richness of the custard for a refreshing finish.
• Big blackberry flavor: The berries are cooked down into a concentrated puree so the ice cream tastes deeply fruity, not watery.
• Beautiful color: The finished ice cream is naturally lavender-purple with glossy berry ribbons.
• Home-cook friendly: A thermometer and a little patience make the custard smooth, scoopable, and reliable.

Grocery List

• Produce: 4 cups fresh or frozen blackberries, plus 1/2 cup fresh blackberries for optional topping; 2 medium lemons for zest and juice, or 3 lemons if they are small.
• Dairy: 2 cups heavy cream, 1 cup whole milk, 5 large eggs for the yolks.
• Pantry: Granulated sugar, fine sea salt, pure vanilla extract.

Full Ingredients

Blackberry Lemon Concentrate

• 4 cups (600 g) fresh or frozen blackberries, rinsed if fresh; do not thaw if frozen
• 1/2 cup (100 g) granulated sugar
• 1/4 cup (60 ml) fresh lemon juice, divided into 2 tablespoons and 2 tablespoons
• 1 tablespoon finely grated lemon zest, from about 2 medium lemons

Custard Ice Cream Base

• 2 cups (480 ml) heavy cream
• 1 cup (240 ml) whole milk
• 1/2 cup (100 g) granulated sugar, divided into 1/4 cup and 1/4 cup
• 5 large egg yolks
• 1/4 teaspoon fine sea salt
• 1 teaspoon pure vanilla extract

Optional Garnish for Serving

• 1/2 cup fresh blackberries
• 1 teaspoon finely grated lemon zest or 8 thin lemon zest curls

Step-by-Step Instructions

Step 1: Prepare the equipment

If you are using a freezer-bowl ice cream maker, make sure the bowl has been frozen for at least 24 hours before churning. Set your freezer to 0°F. Place a clean 1-quart freezer-safe container or loaf pan in the freezer so it is cold when the churned ice cream is ready. For the custard, prepare an ice bath by filling a large bowl with 4 cups ice and 2 cups cold water, then set a medium heatproof bowl nearby.

Step 2: Cook the blackberries

In a medium saucepan, combine the blackberries, 1/2 cup granulated sugar, and 2 tablespoons of the lemon juice. Set the pan over medium heat and cook, stirring often, until the berries release their juices and the sugar dissolves, about 3 minutes. Once the mixture begins to bubble, simmer for 8 to 10 minutes, mashing the berries with a spoon, until the fruit looks syrupy and slightly thickened. The mixture should register about 205°F to 210°F on an instant-read thermometer.

Step 3: Strain and brighten the berry concentrate

Remove the saucepan from the heat. Pour the hot blackberry mixture through a fine-mesh strainer into a clean bowl, pressing firmly with a spatula to extract as much smooth puree as possible. Discard the seeds. Stir in the lemon zest and the remaining 2 tablespoons lemon juice. You should have about 1 1/4 cups blackberry lemon concentrate. Measure out 1 cup for the ice cream base and 1/4 cup for swirling. Cover both portions and refrigerate for at least 1 hour, or until cold.

Step 4: Warm the dairy

In a clean medium saucepan, combine the heavy cream, whole milk, 1/4 cup of the granulated sugar, and the salt. Warm over medium heat, stirring occasionally, until the sugar dissolves and the dairy is steaming around the edges, about 4 to 6 minutes. The mixture should reach 165°F; do not let it boil.

Step 5: Temper and cook the custard

While the dairy heats, whisk the egg yolks with the remaining 1/4 cup granulated sugar in a medium bowl for 1 minute, until the yolks look slightly lighter and thicker. Slowly pour about 1 cup of the hot dairy mixture into the yolks while whisking constantly. This gently warms the yolks so they do not scramble. Pour the tempered yolk mixture back into the saucepan.

Cook over medium-low heat, stirring constantly with a heatproof spatula and scraping the bottom and corners of the pan, until the custard reaches 170°F to 175°F and lightly coats the back of a spoon, about 5 to 7 minutes. Do not let the custard boil, and remove it from the heat if it approaches 180°F.

Step 6: Strain and chill the custard

Immediately strain the custard through a fine-mesh strainer into the medium bowl set over the ice bath. Stir in the vanilla extract. Stir the custard over the ice bath for 5 to 10 minutes, until it cools to about 70°F. Cover the bowl and refrigerate until very cold, at least 4 hours or up to overnight. For the smoothest ice cream, the custard should be 40°F or colder before churning.

Step 7: Mix the blackberry lemon base and churn

Whisk the chilled 1 cup blackberry lemon concentrate into the cold custard until the base is evenly lavender-purple. Pour the mixture into your ice cream maker and churn according to the manufacturer’s directions until it has the texture of thick soft serve, usually 20 to 25 minutes. The churned ice cream should be around 21°F to 23°F when it is ready to pack.

Step 8: Swirl, freeze, and serve

Spoon one-third of the churned ice cream into the chilled freezer-safe container. Drizzle 1 tablespoon of the reserved blackberry lemon concentrate over the top. Repeat with another third of the ice cream and another tablespoon of concentrate, then finish with the remaining ice cream and the final 2 tablespoons concentrate. Use a butter knife to make 2 or 3 gentle figure-eight swirls; avoid overmixing so the berry ribbons stay visible.

Press a piece of parchment paper directly onto the surface, cover tightly, and freeze at 0°F for 3 to 4 hours, until firm enough to scoop. Let the ice cream sit at room temperature for 5 to 10 minutes before serving. Garnish with fresh blackberries and a little lemon zest if you like.

Pro Tips

• Use a thermometer for the custard: Pull it from the heat at 170°F to 175°F for a silky texture without scrambled eggs.
• Keep the lemon out of the hot dairy: Adding lemon juice to the berry concentrate instead of directly to the warm cream helps prevent curdling.
• Reduce the berries well: Concentrating the blackberry mixture gives stronger flavor and helps keep the ice cream from turning icy.
• Chill thoroughly: A very cold base churns faster and traps smaller ice crystals, which means smoother ice cream.
• Swirl lightly: A few gentle passes with a knife are enough. Too much swirling blends the ribbon into the base instead of creating dramatic berry streaks.

Variations

• Blackberry Lemon Shortbread Ice Cream: Add 3/4 cup crushed lemon shortbread cookies during the last 30 seconds of churning for a buttery cookie crunch.
• Blackberry Lavender Lemon Ice Cream: Steep 1 teaspoon culinary lavender in the hot cream and milk for 10 minutes, then strain before tempering the egg yolks.
• Mixed Berry Lemon Ice Cream: Replace 2 cups of the blackberries with 2 cups raspberries or blueberries for a softer mixed-berry flavor.

Storage & Make-Ahead

Store the ice cream tightly covered in the coldest part of the freezer at 0°F for up to 2 weeks. Press parchment paper or plastic wrap directly onto the surface before adding the lid to reduce ice crystals. For make-ahead prep, the blackberry lemon concentrate can be made up to 3 days in advance, and the custard base can be made up to 24 hours before churning. Homemade ice cream freezes firmer than store-bought, so let it soften at room temperature for 5 to 10 minutes before scooping.

Nutrition (per serving)

Calories: 385 kcal | Carbs: 36g | Protein: 5g | Fat: 26g | Saturated Fat: 15g | Fiber: 3g | Sugar: 30g | Sodium: 35mg | Cholesterol: 198mg