Bisquick is a "quick-mix" combining flour, leavening, sugar, and salt. I transfer mine from the box into a canister to keep it fresh...but then I can't remember how many eggs? How much milk? Quick waffles for a yummy Sunday brunch.
In a large bowl, measure out the Bisquick. Break an egg into the bowl, then add the milk and oil. Stir with a whisk until just combined. Overbeating the batter makes tough waffles.
Pour into the center of a preheated waffle iron. It's done when the waffle iron stops steaming. Serve with butter and syrup.