As I stood in my kitchen, the sweet aroma of caramelizing sugar wafted through the air, instantly invoking memories of festive gatherings and cozy moments. This Nut-Free Oat Brittle became my go-to holiday treat, offering all the crunch of traditional brittles without the worry of nut allergies. With just a handful of ingredients—oats, sugar, and a touch of butter—this simple confection not only satisfies a sweet tooth but also makes a thoughtful gift for loved ones. The best part? It’s quick to whip up, allowing you to focus on the joy of sharing rather than spending all day in the kitchen. Are you ready to create something crunchy and delightful that everyone can enjoy?

Why is Oat Brittle a Must-Try?
Crunchy Joy: This nut-free oat brittle delivers an irresistible crunch that keeps everyone coming back for more.
Simple Ingredients: With just oats, sugar, and butter, it’s an easy recipe perfect for both novice and seasoned cooks alike.
Gift-Friendly: Packaged beautifully, it makes for a thoughtful holiday gift that everyone can enjoy, especially those with nut allergies.
Endless Versatility: Enjoy it as a snack, sprinkle it over ice cream, or use it in desserts like porridge for a delightful twist.
Quick and Efficient: In under an hour, you can create a batch of this delicious treat, leaving you more time to savor the festive moments.
Try pairing this treat with recipes like Lemon Oatmeal Crumble for a complete wholesome experience. You’ll find that both are perfect additions for any gathering or cozy night in!
Oat Brittle Ingredients
For the Brittle
- Old-Fashioned Oats – Offers the perfect texture and structure for the oat brittle, adding a delightful crunch.
- Granulated Sugar – Essential for sweetness and caramelization; avoid substitutions for the best flavor.
- Brown Sugar – Adds moisture and a deeper, richer flavor; you can swap for more granulated sugar if needed.
- Water – Helps create the syrup; no substitutes are required here.
- Golden Syrup – Vital for achieving that rich and delicious flavor; corn syrup or light maple syrup can work in a pinch.
- Butter – Enhances richness and smoothness; for a dairy-free option, swap with vegan butter.
- Baking Soda – Key for aeration and achieving that light texture; do not substitute or skip this ingredient.
This nut-free oat brittle is not only a sensational treat but a wonderful gift choice during the holidays!
Step‑by‑Step Instructions for Oat Brittle
Step 1: Toast the Oats
Begin by heating a heavy pan over medium heat. Add the old-fashioned oats and toast them for about 5-7 minutes, stirring frequently until they turn a light golden brown. Keep a close eye to avoid burning, as this enhances the flavor and crunch of your oat brittle.
Step 2: Prepare the Sugar Mixture
In another heavy saucepan, combine the granulated sugar, brown sugar, Golden syrup, and water. Set the pan over low heat, stirring gently until the sugars completely dissolve—this should take around 3-4 minutes. The mixture will become smooth and syrupy, a crucial step for your delicious oat brittle.
Step 3: Melt and Boil
Now, add the butter to the sugar mixture and increase the heat to medium-high. Allow it to boil without stirring, keeping a close watch as it rises and bubbles. You want to reach a temperature of 310°F (154°C) on a candy thermometer, indicated by a rich amber color and an enticing caramel aroma. This usually takes about 8-10 minutes.
Step 4: Add Baking Soda and Oats
Once your mixture reaches the specified temperature, promptly remove it from the heat. Carefully stir in the baking soda, which will create a foamy reaction, lightening the mixture. Quickly add your toasted oats and mix thoroughly to ensure all oats are evenly coated in the sweet syrup for the perfect oat brittle.
Step 5: Spread the Mixture
Pour the oat mixture onto a buttered or silicone-lined cookie sheet. Use a spatula to spread it evenly across the surface, smoothing it out to about 1/4 inch thick. This ensures your oat brittle will have a consistent texture once it cools and hardens.
Step 6: Cool and Break into Pieces
Let the oat brittle cool completely at room temperature, which may take about 30 minutes. Once set, break it into pieces of your desired size. For best results, store the pieces in an airtight container to maintain freshness, allowing you to enjoy this delightful treat at any time!

Oat Brittle Variations & Substitutions
Elevate your oat brittle experience with creative twists and personalized touches that will delight your taste buds!
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Spice It Up: Add cinnamon or nutmeg for a warm, cozy flavor that complements the sweetness perfectly. Just a pinch can transform your brittle into a festive delight.
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Chocolate Drizzle: For a decadent touch, drizzle melted dark or white chocolate over the cooled brittle. This addition brings a luscious richness that pairs beautifully with the crunch.
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Flavorful Extracts: Swap in a splash of vanilla or almond extract to impart a subtle aromatic hint. These extracts enhance the flavor profile and make your brittle extra special.
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Coconut Flakes: Stir in some toasted coconut flakes for a tropical flair. The chewiness of coconut balances the crunchiness of the oats, adding texture and flavor depth.
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Add Heat: If you’re feeling adventurous, sprinkle in a pinch of cayenne pepper for a surprising kick! This unexpected twist adds warmth and excitement to the sweetness of the brittle.
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Nutty Alternatives: While this recipe is nut-free, if dietary restrictions allow, try adding chopped nuts like almonds or pecans after cooking. They provide an extra crunch and a flavorful bite.
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Dipped Delights: Create a fun presentation by dipping half of each brittle piece in melted chocolate and then rolling it in crushed candy canes for a festive holiday twist.
For additional inspiration, consider pairing your tasty oat brittle with recipes like Pie Overnight Oats or enjoy it as a topping on your favorite desserts. Each variation adds a unique touch, making this treat versatile enough for any occasion!
What to Serve with Nut-Free Oat Brittle?
Looking to create a festive spread that complements the sweet, crunchy delight of oat brittle?
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Creamy Vanilla Ice Cream: A scoop of ice cream provides a luscious contrast to the crunchy texture of the brittle. The coolness perfectly balances the sweetness.
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Hot Apple Cider: Sipping on warm apple cider, spiced with cinnamon and cloves, enhances the cozy vibes of your dessert. It’s like a hug in a mug!
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Cheese Platter: A mix of creamy brie and sharp cheddar offers a savory counterpoint to the sweetness of the brittle. The salty and rich flavors create a delightful contrast.
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Chocolate Drizzle: Elevate your oat brittle experience by drizzling it with melted dark chocolate. The bitterness complements the caramel notes beautifully.
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Charcuterie Board: Adding your oat brittle to a charcuterie spread introduces a sweet element amidst salty meats and tangy cheeses, making every bite interesting.
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Herbal Tea: Serve with a fragrant chamomile or mint tea to cleanse the palate between bites, complementing the sweetness in a soothing way.
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Fruit Salad: A refreshing mix of seasonal fruits adds a burst of freshness. The natural sugars in the fruit enhance the experience without overwhelming it.
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Honey or Maple Syrup: A simple dip in honey or maple syrup can add an extra layer of sweetness, making your brittle even more irresistible.
Let these delightful pairings transform your sweet treat into a memorable occasion!
Make Ahead Options
These Nut-Free Oat Brittle pieces are perfect for meal prep enthusiasts looking to save time during the busy holiday season! You can easily toast the oats and prepare the sugar mixture up to 24 hours in advance, allowing you to have key components ready to go. To maintain freshness, store the toasted oats in an airtight container and keep the syrup mixture refrigerated until you’re ready to combine them. When you’re set to finish the oat brittle, simply reheat the sugar mixture to dissolve any separation, stir in the baking soda, and fold in the oats as directed. This way, you’ll have delightful, homemade oat brittle without the last-minute hassle!
Expert Tips for Oat Brittle
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Use a Candy Thermometer: Accurate temperature is crucial; reach 310°F (154°C) for perfect crispness in your oat brittle.
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Avoid Stirring: Once the butter is added, don’t stir the mixture, as this can lead to unwanted crystallization, affecting the final texture.
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Cool Completely: Allow your brittle to cool fully before breaking it apart. This step ensures the desired crunch and makes storing easier.
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Store Properly: Keep the oat brittle in an airtight container at room temperature to maintain its freshness and delicious texture.
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Add Spices for Flavor: Consider incorporating cinnamon or nutmeg into the mixture for a warm holiday twist that enhances the oat brittle’s flavor.
How to Store and Freeze Oat Brittle
Room Temperature: Store your oat brittle in an airtight container at room temperature for up to 2 weeks, ensuring it remains crispy and fresh.
Fridge: While refrigeration is not necessary, if you prefer a cooler treat, place it in a tightly sealed container to avoid moisture for up to 3 weeks.
Freezer: For longer storage, wrap the brittle in plastic wrap and place it in a freezer-safe bag. It can be frozen for up to 3 months without losing its delightful crunch.
Reheating: If stored in the freezer, thaw the oat brittle at room temperature before enjoying. Avoid microwaving, as this can affect the texture.

Oat Brittle Recipe FAQs
How do I choose the right oats for oat brittle?
Absolutely! For oat brittle, I recommend using old-fashioned oats as they give the best texture and structure. Quick oats can be used in a pinch, but they may result in a different consistency. Always check the expiration date on your oats to ensure freshness!
How should I store oat brittle for maximum freshness?
You can keep your oat brittle in an airtight container at room temperature for up to 2 weeks. If you notice it becoming a little soft, just pop it back in the oven for a few minutes to re-crisp! Storing it in a cool, dry place will help maintain its delightful crunch.
Can I freeze oat brittle, and if so, how?
Very! To freeze your oat brittle, wrap it tightly in plastic wrap, and place it in a freezer-safe bag. It will stay fresh for up to 3 months. When you’re ready to enjoy it, just take it out and let it thaw at room temperature. This way, the crunch will be just as delightful as the day you made it!
What should I do if my oat brittle didn’t set properly?
No worries! If your oat brittle is too soft or chewy, it might not have reached the necessary temperature of 310°F (154°C). To salvage it, you can remelt the mixture by reheating it gently in a heavy pan, stirring until it reaches the correct temperature before pouring it back out to cool. Always use a candy thermometer for accuracy!
Is this oat brittle safe for those with nut allergies?
Absolutely! This oat brittle is nut-free, making it a fantastic treat for anyone with nut allergies. Just be careful with the butter choice; you can use vegan butter for a dairy-free version, ensuring that every crumb is safe for your loved ones!

Nut-Free Oat Brittle: Crunchy Joy for Every Occasion
Ingredients
Equipment
Method
- Begin by heating a heavy pan over medium heat. Add the old-fashioned oats and toast them for about 5-7 minutes, stirring frequently until they turn a light golden brown.
- In another heavy saucepan, combine the granulated sugar, brown sugar, Golden syrup, and water. Set the pan over low heat, stirring gently until the sugars completely dissolve.
- Add the butter to the sugar mixture and increase the heat to medium-high. Allow it to boil without stirring until it reaches a temperature of 310°F (154°C).
- Once the mixture reaches the specified temperature, promptly remove it from the heat. Carefully stir in the baking soda, then quickly add your toasted oats and mix thoroughly.
- Pour the oat mixture onto a buttered or silicone-lined cookie sheet. Use a spatula to spread it evenly across the surface to about 1/4 inch thick.
- Let the oat brittle cool completely at room temperature, which may take about 30 minutes. Once set, break it into pieces of your desired size.

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