Pumpkin seed brittle turns those discarded seeds from your jack-o’-lantern into an irresistible Fall treat. This recipe creates the perfect balance of sweet, salty, and crunchy all at the same time!

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👩🍳The combination of crispy toasted seeds and hard crack candy creates an incredibly satisfying crunch!
My 2 Best Tips For Making Pumpkin Seed Brittle
Seed Preparation: Thoroughly cleaning and properly drying the seeds is essential for the best flavor and texture. Remove every bit of pumpkin pulp and strings, then let the seeds air dry completely before roasting. Properly toasted seeds should be golden and aromatic. This develops the nutty flavor that makes the brittle so special.
Spreading Technique: Pour hot brittle onto prepared baking sheet and tilt pan to spread – don’t use a spoon! Work quickly while the mixture is hot for a thinner, better-textured brittle. Thinner layers create superior crunch.

I always keep ice water nearby and test the syrup after 295°F – drop some in, and if it snaps like glass, it’s ready even when my thermometer says otherwise. This backup method has saved me from many overcooked or undercooked batches.
I place my buttered baking sheet on top of another inverted baking sheet before pouring the hot brittle mixture. The air gap keeps the bottom from cooling too fast, so you get more time to spread it evenly. Trust me, this double pan thing makes such a difference.
This treat captures everything wonderful about autumn in one perfect bite. The earthy pumpkin seeds combined with rich caramel flavors create pure fall nostalgia. It’s perfect for adult palates and fun enough for kids to enjoy.
🩷 Melissa
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Pumpkin Seed Brittle Recipe
Ingredients
- 1 ½ cups raw pumpkin seeds
- ½ cup water
- ½ cup light corn syrup
- 1 cup sugar
- ½ teaspoon baking soda
- 1 T. pure vanilla extract
- 1 T. butter plus a little more for the pan
- ¼ tsp. kosher salt
Instructions
- Wash the pumpkin seeds well and remove any bits of pumpkin pulp.
- Preheat the oven to 325°F.
- Lay the seeds out on an unlined, ungreased metal baking sheet and let them dry while the oven is heating. Once the oven is hot place the pumpkin seeds inside and bake for 30 minutes.
- After 30 minutes stir the seeds around and then continue to bake until seeds start to brown slightly and begin to have an aroma, 20 to 30 minutes. Once the seeds are cooked, remove from the oven.
- Butter a large metal baking sheet and set aside.
- Measure out the baking soda, vanilla, and butter into a small bowl and set it aside.
- In a medium saucepan, bring the water, corn syrup, and sugar to a boil over medium high heat. Stir the mixture while the sugar is dissolving. Once the sugar is dissolved and the mixture begins to bubble, don’t stir anymore.
- Using a candy thermometer, allow the mixture to reach 285°F (soft crack stage). Stir in the toasted pumpkin seeds and continue cooking. Cook until the mixture reaches 300°F (hard crack stage), and be sure to stir often once the seeds have been added to prevent them from sticking to the bottom of the pan.
- Remove the sugar and seed mixture from the heat and stir in the baking soda, vanilla, and butter. The mixture will puff up and foam; that’s normal. Stir until it almost stops foaming and then quickly pour the brittle, as thin as possible, onto the buttered baking sheet.
- You can pick up the edges of the pan and tilt it back and forth to help the brittle spread, just don't spread it with a spoon. While the brittle is still hot, sprinkle on the kosher salt.
- Let the brittle completely cool and then break it into pieces. Store in an airtight container or a plastic freezer bag at room temperature for up to two weeks.
Notes
Nutrition
How To Make Pumpkin Seed Brittle

Step 1: Wash the pumpkin seeds thoroughly and remove any pulp, then lay them on an ungreased baking sheet to dry. Preheat your oven to 325°F and bake the seeds for 30 minutes, stir, then continue baking for 20-30 minutes until they’re golden and aromatic.
Step 2: Butter a large metal baking sheet and set it aside. Measure out the baking soda, vanilla, and butter into a small bowl so they are ready to add quickly when needed.
Step 3: In a medium saucepan, combine water, corn syrup, and sugar over medium-high heat. Stir only while the sugar dissolves, then stop stirring once the mixture begins to bubble.
Step 4: Using a candy thermometer, cook the syrup without stirring until it reaches 285°F (soft crack stage). Add the toasted pumpkin seeds and stir frequently to prevent sticking.
Step 5: Continue cooking while stirring often until the mixture reaches 300°F (hard crack stage). Remove from heat immediately and quickly stir in the baking soda, vanilla, and butter mixture until the foaming subsides.
Step 6: Quickly pour the hot brittle onto the buttered baking sheet as thinly as possible, tilting the pan to spread evenly. Sprinkle with kosher salt while still hot, then let cool completely before breaking into pieces.
Recipe FAQs
Chewy brittle usually means the mixture didn’t reach high enough temperature or there was too much humidity in the air. Make sure you are cooking to exactly 300°F and avoid making candy on very humid days. Undercooked brittle will never achieve that satisfying snap no matter how long it cools.
Fill the pan with hot water immediately after pouring out the brittle and let it soak. The remaining candy will dissolve completely in hot water, making cleanup surprisingly easy. Never try to scrape hardened candy residue, as this can damage your cookware – patience and hot water work much better.
Yes! Try adding a pinch of cinnamon or pumpkin pie spice with the vanilla for extra fall flavor. You could also experiment with different extracts like almond or maple. Just remember that a little goes a long way with flavoring extracts.
More Delicious Candy Recipes to Consider
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