- Oven cook the lattice fries in the oven at 175c for 12-15 minutes. Meanwhile, in a small bowl, beat cream cheese, 1 cup fontina cheese, salad dressing, onion and horseradish until blended.
- Remove fries from oven; Top each lattice fry with about 10g corned beef and 1 teaspoon each cream cheese mixture, sauerkraut and remaining fontina cheese. Bake until cheese is melted, 8-10 minutes. Sprinkle with chives.