Texas sheet cake ice cream is a frozen dessert inspired by the classic Southern chocolate sheet cake, blending a rich cocoa custard base with chunks of chocolate cake and toasted pecans. It delivers the same fudgy, tangy, and nutty flavors of the original cake in a scoopable form, making it a fun twist for ice cream makers. This recipe works because the buttermilk in the custard mirrors the cake’s signature tang, while the cake pieces stay soft after being tossed in a simple syrup.
Ingredients
- 2 cups (480 ml) heavy cream
- 1 cup (240 ml) whole milk
- 3/4 cup (150 g) granulated sugar
- 1/4 cup (25 g) unsweetened cocoa powder
- 1/4 teaspoon salt
- 4 large egg yolks
- 1/2 cup (120 ml) buttermilk, at room temperature
- 2 teaspoons vanilla extract
- 1 cup (120 g) chocolate cake chunks (from a baked 8-inch square cake, about 1/2-inch cubes)
- 1/2 cup (60 g) toasted pecans, chopped
- 2 tablespoons (30 ml) simple syrup (equal parts sugar and water, dissolved)
Instructions
- In a medium saucepan, whisk together the heavy cream, milk, granulated sugar, cocoa powder, and salt. Place over medium heat and stir occasionally until the mixture is steaming and the sugar has dissolved, about 5 minutes. Do not let it boil.
- In a separate bowl, lightly beat the egg yolks. Slowly pour about 1 cup of the hot cream mixture into the yolks, whisking constantly to temper them. Pour the yolk mixture back into the saucepan.
- Cook over medium-low heat, stirring constantly with a wooden spoon or heatproof spatula, until the custard thickens enough to coat the back of the spoon and reaches 170°F (77°C) on an instant-read thermometer, about 5–7 minutes. Do not let it simmer.
- Remove from heat and stir in the buttermilk and vanilla extract. The mixture will thin slightly.
- Pour the custard through a fine-mesh strainer into a clean bowl. Cover with plastic wrap, pressing it directly onto the surface to prevent a skin from forming. Refrigerate until completely chilled, at least 4 hours or overnight.
- While the custard chills, bake a simple chocolate cake (or use a store-bought one) and let it cool completely. Cut into 1/2-inch cubes. Toss the cubes with the simple syrup in a bowl, ensuring each piece is lightly coated. Set aside.
- Once the custard is cold, churn it in an ice cream maker according to the manufacturer’s instructions, usually 20–25 minutes, until it reaches a soft-serve consistency.
- In the last 2 minutes of churning, add the syrup-coated cake cubes and toasted pecans. Let the machine mix them in evenly.
- Transfer the ice cream to an airtight container. Press a piece of parchment paper against the surface, then seal with a lid. Freeze for at least 2 hours, or until firm enough to scoop.
Tips
- Use full-fat ingredients: Do not substitute low-fat milk or cream; the fat content is essential for a creamy texture and to prevent ice crystals.
- Don’t skip the simple syrup: Coating the cake cubes in syrup keeps them from freezing rock-hard. Without it, the cake pieces will be icy and crumbly.
- Chill thoroughly: The custard must be fully cold (below 40°F / 4°C) before churning. A warm custard will not churn properly and will result in a grainy texture.
- Toast the pecans: Spread pecans on a baking sheet and toast at 350°F (175°C) for 5–7 minutes until fragrant. This deepens their flavor and keeps them crunchy in the ice cream.
Serving Suggestions
Serve this ice cream in bowls or cones. For a true sheet cake experience, drizzle with warm chocolate fudge sauce and a sprinkle of flaky sea salt. It also pairs well with a scoop of vanilla bean ice cream or a slice of plain chocolate cake. For a sundae, top with whipped cream and a maraschino cherry.
Variations
- Texas Sheet Cake Swirl: After churning, layer the ice cream in a container with a homemade chocolate fudge sauce (like the classic sheet cake icing) and swirl with a knife.
- Nut-Free: Omit the pecans or replace them with crushed pretzels for a salty crunch.
- Gluten-Free: Use a gluten-free chocolate cake for the chunks. The custard itself is naturally gluten-free.
- Mocha Twist: Add 1 tablespoon of instant espresso powder to the custard base along with the cocoa powder for a coffee-chocolate flavor.
Storage and Reheating
Store the ice cream in an airtight container in the freezer for up to 2 weeks. To prevent ice crystals, press a piece of plastic wrap directly on the surface before sealing. If the ice cream becomes too hard, let it sit at room temperature for 5–10 minutes before scooping. Do not microwave the ice cream to soften it, as it will melt unevenly. There is no reheating needed for this frozen dessert.
Frequently Asked Questions
Can I use a store-bought cake instead of baking one?
Yes, a store-bought chocolate cake works well. Choose one that is not overly frosted, and remove any thick icing before cutting into cubes. Toss with the simple syrup as directed.
Do I have to use an ice cream maker?
Yes, for the best texture. Without one, you can freeze the custard in a shallow dish and whisk every 30 minutes for 3–4 hours, but the result will be icier and less creamy.
Can I make this without eggs?
Yes, you can make a Philadelphia-style base by skipping the egg yolks and using 2 cups heavy cream and 1 cup whole milk. Heat the mixture with the cocoa and sugar until dissolved, then chill. The texture will be slightly less rich but still good.
Why did my ice cream turn out icy?
Icy texture usually comes from too much water (from the cake or syrup) or not enough fat. Make sure to use full-fat cream and milk, and do not over-add syrup. Also, ensure the custard is thoroughly chilled before churning.
Can I add the cake chunks after churning?
Yes, you can fold them in by hand when transferring the churned ice cream to the container. This prevents the machine from breaking them into tiny pieces.
How long can I keep this ice cream?
It is best within 1 week, but it will keep for up to 2 weeks. After that, the cake pieces may become slightly soggy and the texture may degrade.
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