1/2cupcane syrup*like Lyle’s Golden Syrup or Steen’s
Preheat oven to 350 degrees. Pour the hazelnuts out onto a rimmed baking sheet and roast for 10-12 minutes, until they are toasted and fragrant. While still hot, spill the nuts into a colander or mesh strainer and shake them around. This will loosen the skins. When they are cool enough to touch, use your fingertips to rub away a bit more of the skins. They don’t have to be perfectly skinned, just get rid of whatever is loose. I like to chop the hazelnuts into slightly smaller pieces, and I do this using a chopping bowl and a curved chopper. You could also pour them into a bag and give it a couple of whacks with a rolling pin. Or, you can just leave them whole. Up to you.
Combine the hazelnuts, oats, cocoa powder and sea salt in a large mixing bowl. Toss it all together with your fingers, just to help the cocoa powder coat everything else.
Measure the oil out into a graduated 1-cup measure and swirl it around a little bit before pouring it into the mixing bowl. Then measure the cane syrup into the same, unwashed measuring cup. This will help you get a accurate measure while still getting the bulk of the sweetener into the granola.
Toss everything together with a silicone spatula (it’s the best tool for this job but a wooden spoon also works) until the oil and syrup are evenly distributed.
Pour the cereal out onto an ungreased baking sheet and spread it evenly using your spatula. Bake at 325 degrees for 25-30 minutes, stirring every 10 minutes or so, to ensure even baking.
When it well roasted, remove the baking sheet from the pan. Using a spatula, scoot the cereal together into the center of the baking sheet and press it down. Let it remain like this, undisturbed, until fully cool. This promotes crunchy clusters.
When the granola is totally cool, use a sturdy metal spatula (something like this, with a flat, straight edge is ideal) to break up the granola and scrape it off the baking sheet.
Store in an airtight jar or container, to protect the crunch.
*If you can’t find or don’t have cane syrup, you could sub in maple syrup. I wouldn’t swap in honey though, I think it would make it too cloying.