Risotto with Green Peas

Ingredients

• olive oil
  2 tsp
• finely chopped leeks or onions
  1 1/2 cups
• uncooked Arborio rice
  1 1/2 cups
• dry white wine

  dry vermouth, or dry sherry
  1/2 cup
• vegetable broth
  4 cups
• salt or to taste
  1 tsp
• -oz. pkg. frozen small green peas (rinse away any ice crystals)
  10 unit
• grated Parmesan

  plus more to pass at the table
  3/4 cup
• good quality balsamic vinegar

  plus more to taste (optional)
  2 tsp
• Freshly ground black pepper to taste
  1 unit