Add flour, sugar, salt, eggs, milk and 1 T of melted butter to the jar of a blender. Process on high until all ingredients are fully combined and the consistency of heavy cream. I usually blend for 1 minute and then scrape down the sides and blend for another 20-30 seconds.
Heat a nonstick skillet over medium to medium high heat. I use a 10 inch skillet, which produces a crepe that is approximately 7 inches and find it is perfect.
Brush some of remaining melted butter on the pan with a silicone pastry brush. Lift the pan and add 3-4 T batter (I use a ¼ dry measuring cup) to the middle of the pan. Working quickly, swirl it around to cover the entire pan evenly with a thin layer of batter. (See video.) You can add a tiny bit more to cover any holes if needed.
Return pan to the heat and cook for approximately 1 minute until the edges start to curl and you see a tiny bit of browning on the edge. (You can lift a bit of the crepe with a spatula to see if it is browning yet. I find a fish spatula works best.) Flip the crepe over and heat for approximately 30 seconds on the other side. Note: Depending on your stove and what type of pan you are using, the cooking could take more or less time. Also, the first crêpe is usually a disaster and not pretty at all! Do not panic. This is totally normal. It generally tastes fine, so you can eat it as a snack or give it to a hungry family member, or you can discard it.
Remove to a plate and repeat until the remaining batter is finished. (Note: I use a dinner plate and slightly overlap the crêpes in a circle and find I don’t need to use parchment paper between the layers even if I put them in the fridge, but if you are freezing them, you should slack them evenly between pieces of parchment.)
Serve immediately with any or all of the suggested toppings, putting the items in the middle of the crêpe and rolling each side over to create a sleeping bag shape. You can put additional items on top to make it pretty. Enjoy!