My go-to recipe for crepes is adapted from The Joy of Cooking:
1/2 cup all-purpose flour
1/2 cup milk
1/4 cup lukewarm water
2 large eggs
2 tablespoons unsalted butter, melted
1 1/2 tablespoons sugar
1 teaspoon vanilla
Combine all ingredients and let rest at room temperature for 30 minutes before use (can also be refrigerated if you aren't using it right after 30 minutes). Then add batter to crepe pan or iron, swirl, flip, fill and enjoy! I did lemon juice and sugar in and on the crepe, then added some fresh berries on top as well.
I recently got a cool crepe iron similar to ones I've seen in creperies, and I love it because it makes huge crepes, and I like using the spreader for an even crepe, also there's more room for filling and toppings!