Preheat your waffle iron according to the manufacturer's instructions.

In a large mixing bowl, whisk together the dry ingredients: flour, sugar, baking powder, baking soda, and salt.

In a separate bowl, whisk together the wet ingredients: buttermilk, eggs, melted butter, and vanilla extract until smooth.

Combine wet and dry ingredients gently until just mixed.

In a small bowl, mix melted butter, brown sugar, and cinnamon for the swirl.

Coat the preheated waffle iron with cooking spray, pour in batter, pipe the cinnamon swirl, and cook until golden.

For the cream cheese drizzle, beat cream cheese until smooth, then gradually mix in powdered sugar and milk.

Serve waffles warm with the cream cheese drizzle on top.