Preheat a waffle iron (I recommend using medium heat). Prepare batter according to directions on package.
Spray waffle iron with non-stick cooking spray and pour amount listed from waffle iron manufactures instructions into waffle iron and cook according to time listed on instructions. Serve warm with desired toppings.
For optional Nutella Sauce:
Whisk together 3/4 cup Nutella with 4 Tbsp milk (or more to thin as desired) until smooth. Warm in microwave if desired. Drizzle over waffles.
These waffles are also good with sweetened whipped cream and fresh strawberries.