If you’re a fan of bold flavor combinations, Jalapeño Peanut Brittle is the candy you didn’t know you needed. This fiery twist on the classic brittle delivers the perfect balance of sweet crunch and spicy heat, making it a showstopping treat for both gifting and snacking. The roasted flavor of peanuts blends beautifully with the subtle burn of jalapeños, resulting in a unique, addictive candy that’s as exciting to make as it is to eat.

Whether you’re a candy-making pro or trying it for the first time, this recipe offers a foolproof method with expert tips for achieving brittle perfection every time.

Why You’ll Love This Brittle

Bold flavor – The contrast of sugary crunch and jalapeño spice makes every bite interesting.
Perfect texture – Crisp, light, and snappy with just the right amount of chew from the peanuts.
Crowd-pleaser – Great for holiday gifts, party trays, or just filling your snack jar with something unexpected.
Homemade charm – Simple ingredients and a straightforward process make it a satisfying DIY candy project.

Ingredients for Jalapeño Peanut Brittle

To make one batch of this sweet and spicy treat, gather the following ingredients:

2–3 jalapeño peppers, deseeded and finely diced
2 cups granulated white sugar
½ cup water
1 cup light corn syrup
2 cups salted peanuts
2 tablespoons unsalted butter
2 teaspoons baking soda
1 teaspoon vanilla extract

Tip: Prep all your ingredients before starting—the candy process moves fast once the sugar reaches the correct temperature.

Essential Tools for Candy Making

You don’t need a professional setup to make brittle, but a few key tools will help ensure great results:

Medium saucepan
Candy thermometer (critical for accuracy)
Wooden spoon or heatproof spatula
Measuring cups and spoons
9×13 inch baking dish
Parchment paper or silicone baking mat

Step-by-Step Instructions

1. Prepare the Pan
Line a 9×13 inch baking dish with parchment paper and set aside. This will ensure easy release once the brittle cools.

2. Prep the Jalapeños
Finely dice the jalapeños, making sure to remove all seeds and stems. Set them aside. If you’re sensitive to heat, wear gloves while handling the peppers.

3. Combine the Base Ingredients
In a medium saucepan, add the sugar, water, and corn syrup. Stir gently to combine, then place over medium heat.

4. Monitor the Temperature
Attach a candy thermometer to the side of the pan, ensuring it does not touch the bottom. Bring the mixture to a gentle boil, stirring occasionally. Once it hits 250°F (121°C), it’s time to add the next ingredients.

5. Add Peanuts and Jalapeños
Stir in the peanuts and jalapeños. Continue stirring constantly as the mixture thickens and darkens. Allow it to reach 300°F (149°C)—this is the “hard crack” stage that gives brittle its signature snap.

6. Add the Final Ingredients
Remove the pan from heat and immediately stir in the butter, baking soda, and vanilla. The mixture will foam—this is expected and helps create the brittle’s airy texture.

7. Pour and Spread
Quickly pour the bubbling mixture into your prepared baking dish. Use a wooden spoon to spread it out evenly before it begins to set.

8. Cool and Break
Let the brittle cool completely at room temperature, about 1 hour. Once hardened, break into pieces and enjoy.

Tips for Success

Use a candy thermometer – Temperature is everything in brittle. Reaching 300°F ensures a crisp texture.
Work fast – Once the baking soda hits the syrup, you need to pour and spread immediately before it firms up.
Use fresh jalapeños – For the best flavor and texture, use ripe, fresh peppers and avoid any with soft spots.
Avoid humidity – Make brittle on a dry day if possible. Humidity can cause it to soften or become sticky.

Storage and Shelf Life

Store your brittle in an airtight container at room temperature. Keep it in a cool, dry place, and it will stay crisp for up to two weeks. Avoid refrigerating—it can introduce moisture and cause the brittle to become chewy.

Variations and Customizations

Heat Level – Reduce to one jalapeño for a milder flavor, or increase to four if you love the burn.
Nut Options – Try cashews or almonds in place of peanuts for a gourmet twist.
Flavor Boost – Add a pinch of cayenne or smoked salt for an extra kick.
Sweet Twist – Drizzle with melted chocolate after cooling for a sweet-savory layer.

How to Gift Jalapeño Peanut Brittle

Homemade candy makes a thoughtful and unique gift, and Jalapeño Peanut Brittle is no exception. With its sweet-heat flavor and beautiful golden appearance, this brittle is ideal for packaging as a holiday treat, hostess gift, or party favor. Here’s how to turn your homemade brittle into a memorable edible present:

Choose the Right Packaging

Select containers that are both functional and visually appealing. Some great options include:

Clear cellophane bags tied with ribbon for small, individual portions
Glass jars with screw tops for a rustic, reusable presentation
Metal tins lined with parchment for a classic candy-shop feel
Kraft boxes with a personalized label or gift tag

Add a Handmade Touch

To make your gift feel even more personal:

Include a small ingredient list or flavor note (“Contains jalapeños and peanuts” or “Sweet with a spicy kick!”)
Attach a handwritten recipe card so the recipient can recreate it themselves
Pair with other homemade goods like cookies, spiced nuts, or jam for a full gift set

Ideal Occasions for Gifting

Holiday gift baskets
Teacher or coworker gifts
Wedding or shower favors
Birthday or thank-you packages
Game night or potluck snacks

Storage Tips for Gifting

Make sure the brittle is fully cooled and dry before packaging to prevent sticking
Include a note to store the brittle in a cool, dry place and consume within 1–2 weeks for best quality

Final Thoughts: A Candy with Personality

Jalapeño Peanut Brittle is proof that candy doesn’t have to be boring. With its spicy edge and sweet crunch, it’s a recipe that surprises and delights at every bite. Whether you’re making it for yourself, gifting it in treat bags, or adding it to a dessert tray, this brittle is bound to make an impression.

Once you try this version, the classic might never taste the same again.

Jalapeño Peanut Brittle

This bold twist on a traditional peanut brittle delivers a perfect balance of sweet, spicy, and crunchy. Finely diced jalapeños add a surprising kick, making it an unforgettable homemade candy that’s great for gifting or snacking.

Print Recipe Pin Recipe

Equipment

– Medium saucepan
– Candy thermometer
Wooden spoon or heatproof spatula
– Measuring cups and spoons
9×13 inch baking dish
– Parchment paper

Ingredients

2 –3 jalapeño peppers deseeded and finely diced
2 cups granulated white sugar
½ cup water
1 cup light corn syrup
2 cups salted peanuts
2 tablespoons unsalted butter
2 teaspoons baking soda
1 teaspoon vanilla extract

Instructions

Line a 9×13 inch baking dish with parchment paper. Finely dice the jalapeños after removing stems and seeds, then set aside.
Measure all the ingredients in advance to ensure a smooth process.
In a medium saucepan, combine sugar, water, and corn syrup. Heat over medium, stirring occasionally, until it begins to boil gently.
Attach a candy thermometer to the side of the pan, making sure it doesn’t touch the bottom.
Continue boiling and stirring the syrup until it reaches 250°F (121°C).
Add the peanuts and diced jalapeños, and stir constantly until the mixture reaches 300°F (149°C).
Remove from heat and stir in the butter, baking soda, and vanilla extract. The mixture will foam up—this is normal.
Quickly pour and spread the mixture evenly into the prepared baking dish using a wooden spoon.
Let the brittle cool completely at room temperature for at least one hour before breaking into pieces.

Notes

Use gloves when handling jalapeños to avoid irritation.

For a milder version, reduce the number of jalapeños or substitute with milder peppers.

Store in an airtight container in a cool, dry place for up to two weeks.

Don’t skip the candy thermometer—accurate temperature is key to the perfect brittle texture.

Author

Natasha

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