THIS IS A CLASSIC: COOK or COOKER
Many Spanish people go into a restaurant and they start talking about how good the "cooker" is.
This is very confusing for native speakers because a "cooker" in English is the appliance that heats the food (gas cooker, electric cooker etc). If you want to talk about the person who is cooking the food then you need to say: "the cook" or the "chef".
Hope that helps!
Soy el director de Daniel Smith + Partners. Tengo más de 10 años de experiencia enseñando inglés a españoles.