Jalapeno Peanut Brittle Recipe | Sweet, Spicy & Crunchy
If you’re someone who appreciates sweets with attitude, this recipe will quickly become one of your favorites. The combination of crunchy peanuts, rich caramel, and jalapeño heat creates a flavor bomb that’s both surprising and addictive. Whether you enjoy mild spice or a bolder burn, the level of heat is easy to adjust, meaning everyone can enjoy a batch tailored to their taste.
I first made this recipe during a holiday candy spree, and instantly realized I’d discovered a keeper. It was the one treat everyone kept coming back to, asking, “What is THIS?!” The mix of sweet and spicy creates such an unforgettable balance that it quickly became my signature homemade candy.
Let’s walk through everything you need to create this irresistible brittle right in your own kitchen.
Jalapeño Preparation
Preparing the jalapeños is the first step in building flavor for this spicy-sweet brittle. This process infuses the sugar syrup with a gentle heat while removing the raw bite of fresh peppers.
Softening and Infusing the Jalapeños
Start by placing your chopped jalapeños into a microwave-safe bowl along with 1/3 cup of water. Microwave the mixture for about 5 minutes to soften the peppers and release their oils. Once heated, let the mixture sit for another 15 minutes. This resting time allows the jalapeño flavor to infuse beautifully into the water, creating a spicy liquid base for the brittle.
After infusing, drain the jalapeños and reserve only the flavored jalapeño liquid. This spicy water is what gives your brittle its signature kick without overwhelming the sweetness.
Syrup Preparation
Creating the perfect sugar syrup is essential for achieving that signature brittle crunch. This step requires patience, attention, and accuracy. But trust me, it’s worth it.
Mixing the Sugar Base
In a heavy-bottomed saucepan, combine:
- 2 cups sugar
- 1 cup light corn syrup
- The reserved jalapeño-infused liquid
Stir gently to dissolve the sugar before the mixture heats thoroughly. Once everything is combined, place the saucepan over medium-high heat and attach your candy thermometer securely on the side.
Heating the Syrup and Adding Peanuts
This is where the magic starts to happen. As the syrup heats and thickens, the spicy aroma of the jalapeños will begin to blend beautifully with the sweetness of the sugar.
Reaching the First Temperature Stage (240°F)
Heat the syrup until it reaches 240°F (soft ball stage). This ensures the mixture is thick enough to coat the peanuts evenly and create a solid brittle later.
Once the thermometer reaches 240°F, stir in:
- 3 cups peanuts
The peanuts will start to toast and deepen in flavor as the syrup continues cooking. Keep stirring to prevent sticking or burning.
Cooking to the Final Temperature (298°F)
Continue heating the peanut-filled mixture until it reaches 298°F, also known as the hard crack stage. This temperature is crucial; it’s what gives brittle its classic glass-like snap.
Once it hits 298°F, remove the pan from the heat immediately.
Finishing the Brittle
Once your syrup-and-peanut mixture reaches 298°F, the following steps come together quickly, so make sure you have everything ready before you remove the pot from the heat.
Adding the Final Ingredients
Immediately stir in:
- 1 teaspoon salt
- 2 teaspoons butter
- 2 teaspoons baking soda
The mixture will foam and expand rapidly once the baking soda hits the hot syrup. This reaction creates tiny bubbles that give the brittle its irresistible light, crisp texture.
Keep stirring until everything is thoroughly combined and the mixture becomes airy and glossy.
Spreading the Brittle
Pour the bubbly mixture onto a buttered or parchment-lined baking sheet. Work quickly but carefully. The mixture is extremely hot.
Shaping the Candy
Use a heat-proof spatula or spoon to spread the brittle into an even layer gently. You can make it thin and delicate or slightly thicker and chewier, depending on your preference.
Allow the brittle to cool completely at room temperature. As it sits, the sweet caramel and spicy jalapeño flavors blend into a beautifully balanced candy.
Breaking Into Pieces
Once hardened, lift the brittle from the tray and break it into pieces using your hands or the back of a spoon.
You can create rustic shards or more uniform squares; either way, it’s delicious.
This is the moment you’ll probably sneak your first taste. The combination of sweet crunch, buttery caramel, and a surprising jalapeño kick is truly unforgettable.
Serving and Decoration
How to Elevate Your Spicy Peanut Brittle
If you want to enhance the look or flavor of your brittle, try:
- A light sprinkle of flaky sea salt before it cools
- A dusting of chili powder for extra heat
- A drizzle of melted chocolate to balance the spice
- Tossing in candied jalapeño bits for added texture and visual appeal
This recipe is incredibly versatile. You can customize the spice level, the decorative finish, and even the thickness to suit your style.
Storage Instructions
Keeping Your Brittle Fresh
Store your brittle in an airtight container at room temperature. It will stay fresh, crunchy, and flavorful for up to 2 weeks.
Freezing Jalapeño Peanut Brittle
Yes, you can freeze it!
Place pieces in a freezer-safe bag with parchment between layers to prevent sticking. Freeze for up to 2 months.
To enjoy, thaw at room temperature; no reheating needed.
Recipe Notes
- Use fresh jalapeños for the best heat and flavor. Older peppers tend to lose intensity.
- Handle jalapeños with care. The oils can sting your skin. Wearing gloves is a smart move.
- Monitor the temperature closely. A candy thermometer is your best friend here.
- Don’t stir once the mixture starts boiling. This prevents crystallization.
- Move fast once you add the baking soda. The mixture sets quickly as it foams.
- Choose your peanuts wisely. Raw peanuts give a deeper roasted flavor; salted peanuts add a savory kick.
These simple tips help guarantee a perfect, glassy, crunchy brittle every single time.
Jalapeno Peanut Brittle Recipe
Ingredients
Video
Notes
Required Kitchen Tools
When making this spicy Jalapeño Peanut Brittle, having the right tools makes the entire process smoother and much safer—especially when working with hot sugar.- Heavy-Bottomed Saucepan:
A sturdy pan is essential for even heating and preventing sugar from scorching. - Candy Thermometer:
Achieving the right temperatures (240°F and 298°F) is key for perfect brittle texture. - Microwave-Safe Bowl:
Used for softening the jalapeños and infusing the water with their heat. - Wooden or Heat-Proof Spoon:
Ideal for stirring hot syrup without melting or warping. - Parchment-Lined or Buttered Baking Sheet:
This is where your brittle will cool and harden. - Heat-Resistant Gloves or Oven Mitts:
Working with molten sugar means protecting yourself is a must.
Frequently Asked Questions (FAQ)
How spicy is Jalapeño Peanut Brittle?
The spice level is mild to medium. Using one jalapeño keeps it light and family-friendly, while using two or more increases the heat. You can control the spice level easily by adjusting the number of peppers.
Can I use pickled jalapeños instead of fresh?
Fresh jalapeños are recommended for the best flavor and heat. Pickled jalapeños contain vinegar, which can affect the texture of the brittle and the cooking process.
Can I make this recipe without a candy thermometer?
You can, but it’s not recommended. A candy thermometer ensures the syrup reaches the correct temperatures (240°F and 298°F). Without it, your brittle might turn chewy or burn.
Why do we add baking soda at the end?
Baking soda causes the mixture to foam, creating tiny air pockets that make the brittle light and crunchy instead of rock-hard.
Can I use roasted peanuts instead of raw?
Yes! Roasted or salted peanuts add an extra depth of flavor. Just keep in mind that salted peanuts will make the brittle slightly saltier.
What if my brittle turns sticky?
Sticky brittle usually means the sugar didn’t reach the hard crack stage (298°F). High humidity can also make brittle sticky. Store it in an airtight container to prevent moisture absorption.
How do I prevent burning the sugar?
Use a heavy-bottomed saucepan and medium heat. Stir only at the beginning, not once it starts boiling. Constant stirring later causes crystallization and uneven cooking.
Can I add other flavors to the brittle?
Absolutely! Popular add-ins include:
- Chili flakes for more heat
- Smoked paprika for a smoky finish
- Candied ginger for sweetness
- Dark chocolate drizzle for balance
How long does Jalapeño Peanut Brittle last?
Stored in an airtight container at room temperature, it stays fresh for up to 2 weeks. If frozen, it can last up to 2 months.
Can I double the recipe?
Yes, but use a larger pot. The mixture foams aggressively when baking soda is added, so give it plenty of space to expand.
Is this brittle safe for kids?
Yes, as long as you use only one jalapeño. For extra-sensitive palates, you can remove the seeds to reduce heat.
Why do I need to work quickly when spreading the brittle?
Once removed from the heat, brittle begins setting almost immediately. Working fast ensures you spread it evenly before it hardens.
Can I skip the jalapeño infusion step?
You can, but you won’t get the deep flavor. The infusion gives the brittle a smoky, peppery note without overwhelming chunks of jalapeño.
Conclusion
Making Jalapeño Peanut Brittle at home is one of my favorite ways to combine heat and sweetness into a snack that truly stands out. Every bite delivers a satisfying crunch followed by that warm jalapeño tingle that keeps you reaching for “just one more piece.”
By following this detailed guide, from infusing the jalapeño water to reaching the perfect candy temperatures, you can easily master this unique twist on classic brittle. Whether you’re making it for holiday gifting, party treats, or to satisfy your sweet-and-spicy cravings, this recipe is sure to become a staple in your kitchen.
Now that you know how simple (and fun!) it is to create this fiery candy, roll up your sleeves, grab your ingredients, and let the sweet heat of homemade Jalapeño Peanut Brittle take center stage.
Sophia Smith is a passionate home baker and dessert enthusiast who loves sharing her favorite recipes, baking tips, and kitchen secrets. Through Roses Baking Passion, she inspires others to bake with love and creativity every day.
