Add milk, flour, sugar, salt, butter, vanilla, and eggs to a blender, then blend on low speed until well combined, about 10 seconds.

Scrape sides and bottom of blender if there's any flour sticking and blend a few seconds longer.

Cover and chill 1 hour (or overnight if desired).

Heat a 10-inch non-stick skillet over medium heat.

Gently stir batter with a spoon just to blend separated layers.

Lightly butter skillet then lift pan and pour a scant 0.25 cup batter into pan, immediately tilt and swirl pan in circular motion to evenly coat entire bottom of the pan with batter.

Cook until golden brown on bottom, then use an offset spatula to lift an edge of the crepe, grab the edge of the crepe with your fingertips and flip to the opposite side. Cook until golden brown spots appear.

Transfer to a wire rack. Repeat until all batter is used, reducing heat slightly if needed.

Dust crepes with powdered sugar and roll or fold into fourths, or fill with desired fillings then fold.