In a medium bowl, combine milk, eggs, oil, sugar, salt, and vanilla.
Whisk until mixture comes together and eggs are fully incorporated.
Add flour.
Whisk until smooth.
Strain into clean bowl.
Cover with plastic wrap.
Set aside for at least 30 minutes (or refrigerate overnight).
Heat a 10 inch non-stick skillet over low heat.
Lightly spray with non-stick cooking spray.
Add ¼ cup batter to pan.
Swirl around until it completely coats the bottom.
Cook until very light brown, about 3-4 minutes.
Flip crepe.
Continue to cook until very light brown, about 3-4 minutes.
Remove to plate.
Stack crepes with sheets of parchment in between to prevent them from sticking to each other.