[recipe] buttermilk pancakes

1⅓ cups (160g) all-purpose flour
3 tbsp sugar
1 tsp baking powder
1 tsp baking soda
1 tsp kosher salt
2 large eggs
1¼ cups (300ml) buttermilk
2 tbsp unsalted butter, melted
Vegetable oil (for griddle)
Maple syrup (for serving)