Preheat oven to 230C.
Combine garlic, flour, cheese, sour cream and milk in a large food processor/mixer, process until mixture forms a ball.
Add olives and basil, mixing by hand.
Remove dough to a floured board, roll/pat until 3cm thick.
Cut into desired shapes.
Spray dough tops with canola oil, and bake for 15 minutes or until golden.
Serve topped with extra basil leaves.