In a large bowl, whisk together the flour, sugar, baking powder, baking soda and salt.
In a separate medium bowl, whisk together the buttermilk, melted butter and eggs. Add the wet ingredients to the dry ingredients and stir just until combined. (The batter should be lumpy.) Fold in the mini chocolate chips.
Preheat the waffle iron and grease it with cooking spray. Spoon a portion of the batter into the waffle iron and cook the waffle until it is golden brown and slightly crisped.
Remove the waffles from the waffle iron and serve them warm with your choice of maple syrup, whipped cream or fruit for topping.
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