Dom's buttermilk waffles

1. 1. Adjust an oven rack to the middle position and heat the over to 250 degrees. Set a wire rack in a rimmed baking sheet and place int he baking sheet in the oven. Whisk the flour, buttermilk powder, sugar, cinnamon, salt, and baking soda in a large bowl to combine. Whisk the sour cream, eggs, oil, and vanilla in a medium bowl to combine. Gently stir the club soda into the wet ingredients. Make a well in the center of the dry ingredients and pour in the wet ingredients. Gently stir until just combined. The batter should remain slightly lumpy with streaks of flour.

2. 2. Heat a waffle iron and bake the waffles. Transfer the waffles to the rack in the warm oven and hold for up to 10 minutes before serving for a more crisp exterior.