Piri Piri Lamb on a Stick

Name: Piri Piri Lamb on a Stick
Prep time: 10 min
Cook time: 5 min
Yield: 18
Ingredients: 1 pound (500 g) ground lamb; 1/2 cup (125 ml) each finely diced onion and chopped spinach; 2 tbsp (30 ml) each bread crumbs and water; 1 egg yolk; 3 tbsp (45 ml) piri piri (club house); 18 skewers