
This sunflower seed brittle has become my go-to treat whenever I need a quick homemade gift or a sweet snack with serious crunch factor. The combination of caramelized sweetness with nutty sunflower seeds creates an irresistible treat that disappears quickly at gatherings.
I first made this brittle when looking for nut-free alternatives for a friend with allergies. What began as a substitution experiment has become one of my most requested recipes, especially during the holiday season when I package it in small cellophane bags with colorful ribbons.
Ingredients
- Roasted Sunflower Seeds: Provide the perfect nutty crunch foundation. Look for seeds that appear plump and uniform in color for best results
- Vegan Honey: Creates that classic sticky sweet base that hardens perfectly. You can use agave nectar or maple syrup if you prefer
- Granulated Sweetener: Works with the liquid sweetener to achieve the perfect crystallization. Organic cane sugar gives the best golden color
Step-by-Step Instructions
- Prepare Your Workspace:
- Before beginning, line a baking sheet with a silicone baking mat or well-greased parchment paper. Have all ingredients measured and ready since this recipe moves quickly once started.
- Create The Base:
- In a medium non-stick saucepan or well-greased regular pan, combine the vegan honey and granulated sweetener. Heat over medium-high heat until the mixture comes to a full boil, stirring occasionally to ensure even melting.
- Incorporate The Seeds:
- Once your sweetener mixture is bubbling consistently, add all the sunflower seeds at once and stir quickly to coat every seed. The mixture will temporarily stop boiling which is completely normal.
- Caramelize The Mixture:
- Return the mixture to a boil while stirring constantly to prevent burning. This step takes approximately 10 minutes and requires patience. Watch as the mixture thickens and transforms from foamy and light to a deeper amber color with no visible bubbles.
- Pour And Cool:
- Working quickly but carefully, pour the hot candy mixture onto your prepared baking sheet. Use a silicone spatula to spread it into a thin, even layer about 1/4 inch thick. Do not touch the mixture as it is extremely hot.
- Break And Store:
- Allow the brittle to cool completely at room temperature, which takes about 30-45 minutes. Once hardened, break the brittle into irregularly shaped pieces by gently tapping with the back of a spoon or your hands.

My favorite thing about this brittle is how the sunflower seeds develop an intensified nuttiness when caramelized. I discovered this recipe during a snow day when I was craving something sweet but had limited ingredients. The warm aroma of caramelizing sugar filled my kitchen and created a cozy feeling that I now associate with making this treat.
Perfect Temperature Guide
Achieving the right temperature is crucial for perfect brittle. Without a candy thermometer, look for visual cues. The mixture should turn a deep amber color and when you drop a small amount into cold water, it should form hard, brittle threads immediately. If you have a candy thermometer, aim for 300°F to 310°F for that perfect snap.
Storage Solutions
Store your finished brittle in an airtight container separating layers with parchment paper to prevent sticking. Keep at room temperature in a cool, dry place for up to two weeks. Avoid refrigeration as this can make the brittle sticky and lose its satisfying crunch. For longer storage, you can freeze the brittle for up to three months in freezer-safe containers.
Flavor Variations
This basic recipe serves as a wonderful canvas for creativity. Consider adding a teaspoon of vanilla extract just before pouring for warmth, or a half teaspoon of cinnamon for spicy notes. For a savory twist, incorporate a quarter teaspoon of sea salt into the mixture or sprinkle flaky salt on top while still warm. My personal favorite variation includes a tablespoon of pumpkin pie spice added during the cooking process for a seasonal treat.

The delightful crunch and rich, nutty flavors of this brittle make it truly unforgettable. It's a recipe that brings warmth and sweetness to every occasion!
Frequently Asked Questions
- → Can I substitute the vegan honey with something else?
Yes, you can substitute vegan honey with maple syrup, agave nectar, or traditional honey if you're not following a vegan diet. Each will slightly alter the flavor profile but will work well in the brittle.
- → How long does sunflower seed brittle stay fresh?
When stored in an airtight container at room temperature, sunflower seed brittle can last for 2-3 weeks. For longer storage, you can refrigerate it for up to a month.
- → Why is my brittle chewy instead of crunchy?
If your brittle turned out chewy, it likely wasn't cooked to a high enough temperature. The mixture should be boiled until it's no longer foamy and has thickened considerably, about 10 minutes of frequent stirring.
- → Can I add other nuts or seeds to this brittle?
Absolutely! You can replace some of the sunflower seeds with pumpkin seeds, chopped nuts like almonds or pecans, or even add a sprinkle of sea salt on top for a sweet-salty contrast.
- → How do I know when the brittle mixture is ready to pour?
The mixture is ready when it has thickened significantly, is no longer foamy or bubbly, and has a deep amber color. This typically takes about 10 minutes of frequent stirring after adding the sunflower seeds.
- → Can I make this without a candy thermometer?
Yes, you can make this brittle without a candy thermometer by watching for visual cues. The mixture should be thick, no longer foamy, and have a deep golden color when it's ready to pour.