To pipe the polka-dots onto the servings, you will need a pastry bag and an Ateco #5 round tip.To pipe the polka-dots onto the servings, you will need a pastry bag and an Ateco #5 round tip.

                                                                                                 Ingredients

                                                                                                 Serves 4 to 6

• 2 tablespoons olive oil
• 1 pound (about 1 1/2 cups) leeks, white and light-green parts only, washed well and thinly sliced
• 3 1/2 cups homemade or low-sodium canned chicken stock
• 4 cups fresh shelled peas, or 2 ten-ounce packages frozen peas, thawed
• Salt and freshly ground pepper
• 1/3 cup sour cream