Place oven rack in upper third of oven and preheat oven to 400°F.
Place oven rack in upper third of oven and preheat oven to 400°F.
Removed crusts from each slice to form a square then cut diagonally into 2 triangles.
Toast triangles on a baking rack until slightly toasted on the outside and soft on the inside, 3 to 4 minutes.