Preheat the oven to 350 degrees F. Line and 8 x 8 inch square baking pan with two sheets of parchment paper, criss-crossed across the pan so that the sheets extend over the edges on all four sides. Spray the parchment with non-stick spray.
In a large mixing bowl, combine the oats, brown sugar, oat flour, salt, almonds, coconut, cranberries and chocolate chips.
Add the peanut butter, melted butter, honey corn syrup and water and stir until well combined.
Spread the mixture evenly into the prepared pan. Press the mixture down as firmly and evenly as possible. Placing a sheet of plastic wrap on top and pressing down with your hands or the bottom of a glass works well.
Bake in the preheated oven for 30 to 40 minutes, until golden brown around the edges.
Cool completely, then pop the pan into the fridge for 30 minutes or so. Lift the sides of the parchment paper to lift out the granola slab. Cut into 12 bars using a serrated, or chef's knife. (If bars are too cold to cut, just let them soften up a bit at room temperature before trying again.
Store in an airtight container at room temperature, or wrap individually in plastic wrap, and put in an airtight container to freeze.