Roast chicken broth with orzo – The Copper Kettle

Ingredients

• 1 tbsp olive oil (extra virgin)
• 15 grams butter
• 1 onion
• 1 leek
• 2 cloves garlic
• 1 stick celery
• 2 carrots
• skin, bones and carcass of a roast chicken
• 1.5 litres water
• 1 cup orzo (or any other small pasta)