Whisk together flour, sugar, baking powder and salt. Set aside flour mixture. Add coconut milk, melted vegan butter and vanilla. Stir until just combined.
Heat your waffle iron. Spray with cooking spray and pour batter into waffle maker (amount varies by iron). Leave a 1-inch border on all sides. Close iron. Cook until waffles are crispy and golden brown, 3-5 minutes. Repeat with remaining batter. Serve nice and hot!
*You can use 2 tablespoons melted coconut oil in place of the vegan butter.