The Nuoc Cham dipping sauce can be made 1 day before. Mix all the ingredients in a bowl till all sugar dissolves and everything is combined well. Adjust sugar and spice levels according to taste.
Filling :Mushrooms
Cook the mushrooms and onions in 2 teaspoons oil in a pan for 10-15 minutes.
Add in the salt and chilli powder to taste.
Filling: Veggie
In large bowl, add in all the veggies and the Nuoc Cham sauce and mix well.
Let the mixture sit for half an hour before use.
Crepe:
Prepare batter in a bowl by mixing in all the ingredients except oil.
Mix well till smooth.
Heat 1 teaspoon oil on a non-stick pan and pour 1/4 cup batter on it and spread it by swirling or any other way you like.
Let it cook for a minute.
Top one side of the crepe with the filling(mushrooms or veggie or both) and top off the filling with bean sprouts and the fresh herbs(mint, basil and cilantro).
Once the crepe starts getting crisp and brown, fold it half over the filling and press down gently.
Lift up the complete crepe and serve with lettuce leaves and the dipping sauce.
The crepe is normally eaten by cutting a portion of the crepe and wrapping it in lettuce and the herbs and dipping in the sauce. Since i altered the recipe a bit, the herbs are already in the crepe, so the only wrap needed is the lettuce leaves!