Preparation Steps

• Preheat the waffle iron to medium-high heat.
• Blend the oats into a fine flour: add the rolled oats to a blender and process until powdery.
• In a large bowl, whisk together the oat flour, baking powder, cinnamon, and salt.
• In a separate bowl, whisk the milk, eggs, melted butter, vanilla, and maple syrup until smooth.
• Pour the wet ingredients into the dry ingredients and stir just until combined. Let the batter rest for 5 minutes to thicken.
• Lightly grease the waffle iron with vegetable oil. If using add-ins, fold them into the batter now.
• Ladle about 0.5 cup of batter onto the hot waffle iron. Close and cook until deeply golden and crisp, 3 to 4 minutes, or according to your waffle maker’s instructions.
• Serve warm with butter, fruit, and maple syrup. Keep finished waffles warm on a low oven rack while cooking the rest.