Melt the 2 tablespoons butter in the microwave or on the stove. Let it cool for a few minutes before using in the batter, so you don't end up scrambling the eggs.
Add 1 cup all-purpose flour, 1/2 cup milk, 1/2 cup water, 2 large eggs, 1/4 teaspoon salt, 1 tablespoon sugar (skip if you are making savory crepes), and 1 1/2 teaspoons pure vanilla extract (skip if you are making savory crepes) in the blender, and blend on high until well mixed.
Let the batter rest for a 30 minutes to 2 hours in the fridge until the bubbles have dissolved and are no longer frothy. (Sometimes I skip this step and still have good results.)
Heat an 8 to 10-inch skillet with a handle to medium heat. Lightly coat pan with cooking spray or melted butter.
Pour about 1/4 cup of batter into the heated pan, then QUICKLY pick the pan up by the handle, and swirl the batter to the outsides of the pan, so the batter evenly coats the bottom of the pan.
Let cook for about 1 to 2 minutes, then carefully flip to the other side and cook for another 90 seconds or so.
Repeat with remaining batter, stacking cooked crepes on top of each other as you finish off the batter.
To make the homemade whipped cream, pour 1 pint heavy whipping cream into a bowl and beat with an electric mixer on high for several minutes until stiff peaks form. Then add the 1/4 cup powdered sugar and 1 teaspoon pure vanilla extract; gently stir to combine.
Fill crepes with yummy toppings such as Nutella, berries, homemade whipped cream, banana slices, etc. Enjoy!