The best lamb skewers with candied lemon - Le Coup de Grâce

Ingredients

• 1 kg lamb cubes in the leg
• 3 large garlic cloves, finely chopped
• 1/4 cup soy sauce
• 3 tablespoons olive oil
• 1 tablespoon cumin
• 1 tablespoon honey
• 1 to 2 sliced candied lemons, quartered
• 1 large yellow onion, cut into large pieces
• Salt and pepper from the mill