In large bowl, whisk flour, salt, cinnamon, baking powder and brown sugar.

In smaller bowl, whisk eggs, milk and melted butter.

Make well in dry ingredients then mix in wet ingredient mixture until just combined.

Using cheese grater, grate apple. Fold grated apple into batter.

Prepare waffle iron with nonstick cooking spray.

Ladle 1/4 of batter mixture into waffle iron and cook according to manufacturer’s instructions. Repeat with remaining batter.

Top each waffle with 1 tablespoon room temperature butter and maple syrup, to taste.