1. Whisk together dry ingredients.
2. In a saucepan over medium heat, heat oil, brown sugar, and milk until sugar is melted and little bubbles are starting to form around the edge of the pan.
3. Pour milk mix into the dry ingredients. Using a mixer, beat on low speed until well combined. Add eggs, vanilla and pumpkin and beat for 2-3 minutes.
4. Cover bowl and refrigerate overnight (8-12 hours).
5. Cook waffles as recommended by your waffle maker until golden brown.