Start by spraying your waffle iron with cooking spray, and then preheat it to a medium-high temperature.
In a medium-sized bowl, sift together the all-purpose flour, white sugar, baking powder, and salt.
In a large bowl, use an electric mixer to beat the egg whites until they form stiff peaks. This should take about 2 minutes.
In another large bowl, mix together the egg yolks, vegetable oil, milk, and vanilla extract.
Now, add the sifted flour mixture to the bowl with the egg yolks and mix until everything is well combined.
Carefully fold the beaten egg whites into the mixture. Be gentle so that you keep the fluffiness.
For each waffle, spoon about 1/2 cup of the batter onto the preheated waffle iron.
Cook the waffle until it turns golden and easily comes off the iron. This usually takes around 5 to 7 minutes.
Once your waffle is ready, serve it hot with a dollop of strawberry butter and a drizzle of vanilla maple syrup.
Enjoy your homemade Joanna Gaines-style waffles!