Add butter (or oil), honey (or pure maple syrup), brown sugar, vanilla extract and nut butter (this ingredient is optional. See notes) to a pot over medium high heat. Stir frequently until ingredients are fully melted. Remove from heat and let cool a few minutes.
In a large bowl, combine the rolled oats with Rice Krispies and salt. Pour the melted syrup in and mix together until it's evenly combined. Let this cool for a few minutes until warm and not hot, otherwise flavor ingredients might melt.
Add the flavor ingredients to the bowl and mix together.
Pour into a square dish lined with parchment paper. (Tip: lightly grease the dish before addign the parchment. This will help it to stick). Smooth the mixture out with a spatula.
Lightly grease the back of a glass with a bit of cooking oil. Use it to press and pack the granola firmly into the bottom of the dish. Place in the fridge to chill a minimum of 2 hours.Once chilled, pick up the parchment paper and place it on a cutting board. Use a large knife to slice into thin rectangles. Serve an enjoy!
