Remove some dirt from the ground or not depending on your project. Level the ground. Then place weed barrier on the ground. Afterward, add crushed granite on top of weed barrier.
For a better effect, dig a hole a minimum of 3 inches deep, fill up about 2 inches deep with a base like crushed concrete or similar and weed barrier first, then put crushed granite on top.
You can also line the edges of your pathway or patio with steel or polyboard edging. This will keep the granite from drifting away and will give your project a nice finished appearance.
You may need:
Polyboard or steel edging
Weed barrier staples
Flagstone (Available at Madison Gardens Nursery) Photos of stone