In a bowl, stir ¾ cup all-purpose flour and ¼ teaspoon salt.
Add 2 eggs and mix until you have a paste.
Add 1 cup whole milk gradually while whisking. Integrate well. Do it little by little so there are no lumps. When you have a smooth mixture, add ⅓ cup heavy cream and stir to integrate.
Let stand for 1 hour at room temperature.
Heat the pancake griddle or non-stick skillet over low heat.
Add a smear of butter before each crepe. Use about ¼ cup of preparation for each crepe. Do a test run to see how much batter your griddle allows and if you need to increase to medium heat. Adjust as you go along, just like with regular pancakes.
Cook for 40 seconds to 1 minute on the first side; when the surface is filled with bubbles and the edges are firm, turn the crepe over and cook for another 15 to 20 seconds.
Place them on a plate, stacking them irregularly so that it is easier to separate afterwards.
They can be kept in the fridge, well wrapped in plastic for a couple of days or frozen, with dividers between each one, for 1 month.
Notes
Freezing crepes: separate each with freezer sheets, or you'll have a mess when you thaw them. Keep them in a closed freezer-safe container or bag. Refrigerator: you can also keep them in the fridge for a few days, well-covered and separated by freezer sheets.