02Mix 1/2 cup panko, Fontina cheese, parsley, chopped chives, and 1 egg yolk into risotto. Shape into 1 1/4-inch balls; flatten to 2-inch rounds. Arrange on rimmed baking sheet. (Can be made 2 days ahead. Cover and refrigerate.)
03Preheat oven to 250°F. Set another rimmed baking sheet in oven. Beat 2 eggs in shallow bowl to blend. Place 1 cup panko in another shallow bowl. Dip risotto cakes into beaten egg, then into panko to coat. Pour enough canola oil into large skillet to coat bottom; heat oil over medium-high heat. Working in batches, sauté risotto cakes until crisp and brown, about 2 1/2 minutes per side. Transfer to baking sheet in oven.
04Serve risotto cakes sprinkled with cheese and garnished with chives.