Sweet Potato Risotto

Ingredients (13)

• 1 large (about 1lb) Jewel sweet potato
• 4 teaspoons vegetable oil
• 3 tablespoons butter
• 4 slices prosciutto
• 6 cups low salt stock / broth (chicken or vegetable)
• 1 medium onion, finely diced
• 2 cloves garlic, crushed
• 1 cup finely chopped celery (about 3 medium stalks)
• 2 cups Arborio rice
• 1 teaspoon salt
• 1 tablespoon fresh thyme leaves
• 3 oz (3/4 cup packed) finely shredded Parmesan cheese
• 2-3 cups boiling water