In a large mixing bowl, whisk together the all-purpose flour, sugar, baking powder, baking soda, and salt.

In a separate bowl, mix together the oat milk, melted coconut oil, and vanilla extract.

Pour the wet ingredients into the dry ingredients and stir until just combined. Do not overmix; a few lumps are okay.

Preheat a non-stick skillet or griddle over medium heat. If needed, lightly grease the surface with cooking spray or a small amount of coconut oil.

Pour 1/4 cup of the pancake batter onto the skillet for each pancake. Cook until bubbles form on the surface, then flip and cook for another 1-2 minutes until golden brown.

Repeat with the remaining batter, adding more oil or cooking spray as needed.

Serve the oat milk pancakes warm with your favorite toppings.