Preheat the oven to 160C or 140C ( if using a fan oven)
Line large baking tray with parchment paper
Place oats, cinnamon, nuts, and seeds in a large bowl and mix it.
Put the butter and maple syrup in a small pan over low heat. Stir gently until the buter has melted and all comes together.
Pour wet ingredients over the dry ones and mix them to combine.
Spread the granola in the baking tray evenly and cook for about 10 min.
Take the tray out, mix and fold the granola ( press it down if you want more chunky bits ) and put it back in the oven for another 10 min or until the edges start browning up.
Take the granola out and let it cool down completely. Don't mix warm granola as it will break and separate the crunchy clusters.
Once cool, place the granola in an airtight container and use it within 1 month. Enjoy!