I love the pop of shelled and roasted pumpkin seeds (or Pepitas) and decided to make a brittle. Turned out pretty good. I think next time I would actually cook it to a slightly lower temperature.
1 1/2 cups toasted and salted Pepitas (shelled pumpkin seeds)
1/2 cup water
1 cup granulated sugar
1/2 cup corn syrup
1/2 teaspoon baking soda
1 teaspoon vanilla extract
In a 3 quart saucepan, add sugar, water, corn syrup and heat, only stirring in the beginning to combine, until 290 degrees. Add Pepitas and cook until 300 degrees. Remove from heat, add vanilla and baking soda, stir carefully (baking soda will cause the mixture to foam, just keep stirring) and pour onto silicone liner or parchment paper. When cool, break into pieces.
Note: I buy my seeds and nuts in bulk from bulkfoods.com – saves me steps in roasting and salting but you can certainly do this yourself.