Blackberry Yogurt Waffles (Baby + Toddler Friendly!)

1 Preheat the waffle iron.
2 In a medium bowl whisk together the egg, yogurt, milk and melted butter. Add in the flour and if using, baking powder.
4 Add the dry ingredients to the wet mixture and gently fold until combined. Fold in the blackberries.
6 Cook the batter in the waffle iron until lightly golden and cooked through.
7 Cool slightly and cut into strips or small pieces for babies and toddlers.