Okay, so possibly these are intended to be dessert crepes. But I think they're good for breakfast.

Serve on their own, or with Nutella, whipped cream, berries, .... Serves 2-3.

Ingredients Step
1 T. unsalted butter Melt in small 7-inch skillet.
½ c. milk
1 egg, room temperature
1 T. sugar
melted butter
½ t. vanilla
⅛ t. salt<
Whisk vigorously to combine.
42 g (⅓ c.) flour
5 g (1 T.) cocoa powder
Sift in. Whisk until completely smooth (excepting butter).
Let batter rest 15 minutes.
Heat the same 7-inch skillet over medium. Then pour a scant ¼ c. (3 T.) batter into the skillet. Swirl quickly to coat the bottom of the pan. Let cook until edges look dry, 60-90 seconds, then flip and cook 30-60 seconds more. Repeat for remaining batter.

Source: Zaynab Issa at NYT