In a medium-sized bowl, whisk together the non-dairy milk and apple cider vinegar. Let it sit for a few minutes to curdle and create a vegan buttermilk.
In a large mixing bowl, combine the flour, sugar, baking powder, baking soda, and salt.
Add the melted coconut oil or vegetable oil and vanilla extract to the vegan buttermilk mixture. Whisk until well combined.
Pour the wet ingredients into the dry ingredients and stir until just combined. Be careful not to overmix; a few lumps are okay. Let the batter rest for about 5 minutes to allow the baking powder to activate.
Preheat your waffle iron according to the manufacturer’s instructions.
Once the waffle iron is ready, ladle the batter onto the hot iron, using the recommended amount of batter for your specific waffle iron. Close the lid and cook until the waffles are golden brown and crispy.
Carefully remove the waffles from the iron and serve immediately with your favorite toppings, such as maple syrup, fresh fruit, vegan butter, or plant-based whipped cream.
