Check out the blog for the the from scratch version
Preheat your oven to 425 degrees F and prep a large 12x16 baking sheet with parchment paper or grease it well with nonstick spray.
In a mixing bowl combine the pancake mix, milk, eggs, and vanilla until combined but do not overwork the batter.
Pour the batter into the baking sheet and smooth it out into an even layer.
Add your optional add-ins, if desired.
Bake for about 10 minutes or until the pancake is fully cooked.
Slice into squares and serve.