Sourdough Waffles from Scratch Recipe | Alton Brown

Ingredients

• 3/4 cup plus 2 tablespoons all-purpose, unbleached flour
• 1/2 cup filtered water, at room temperature
• 2/3 cup plus 1 tablespoon all-purpose, unbleached flour
• 7 tablespoons filtered water, at room temperature
• 1/2 cup discarded Sourdough Starter (unfed)
• 1 cup whole milk
• 1 1/4 cups unbleached, all-purpose flour
• 1 large egg, separated
• 4 tablespoons unsalted butter, melted and cooled
• 1 tablespoon granulated sugar
• 1 teaspoon kosher salt
• 1/4 teaspoon cream of tartar