Buttermilk Vanilla Waffles

Ingredients

• 6 1/2 ounces all-purpose flour (1 1/3 cup; 185g)
• 1 1/2 ounces powdered sugar (1/4 cup plus 2 tablespoons; 45g)
• 1/2 teaspoon (2g) kosher salt; for table salt, use half as much by volume or use the same weight
• 1/2 teaspoon (3g) baking soda
• 1/2 teaspoon (2g) baking powder
• 1 vanilla bean, split and scraped (or 1T vanilla extract)
• 14 ounces cultured lowfat buttermilk (1 3/4 cup; 395g) (can be 50/50 plain yogurt & milk)
• 1 1/2 ounces unsalted butter, melted (3 tablespoons; 40g)
• 2 large egg whites (about 2 1/2 ounces; 70g)
• 1 teaspoon (5ml) vanilla extract
• Maple syrup, for serving

Directions

1. For the Batter: In a large bowl, combine flour, powdered sugar, salt, baking soda, baking powder, and the scrapings of one large vanilla bean, mixing by hand until the seeds are well dispersed. Add buttermilk, melted butter, egg whites, and vanilla extract and whisk until smooth.
2. For the Waffles: Set waffle iron to medium and preheat until the indicator is ready. For an 8-inch square machine, scrape in roughly half the batter. For a 7-inch Belgian machine, scrape in about one-third. Close lid and cook until waffle is golden brown but still steaming, 4 1/2 to 6 minutes depending on the depth and heat of your machine. Serve immediately, with copious amounts of maple syrup, and griddle remaining batter as before.

From: https://www.seriouseats.com/recipes/2016/04/buttermilk-vanilla-waffles-recipe.html