Preheat oven to 180°C (350°F).
Cut bread crusts into bite-sized pieces if needed.
Toss the crusts with melted butter until evenly coated.
In a bowl, mix sugar, cinnamon, and a pinch of salt.
Sprinkle the cinnamon-sugar mixture over the crusts and toss well.
Spread them on a baking tray in a single layer.
Bake for 8–12 minutes until crispy and golden.
Remove, drizzle with honey or maple syrup if desired, and let cool before serving.