A food copy editor once advised me not to mention travel so much in my work. It made me, in her words, “sound like a spy.” I had to chuckle because, with my voluminous, flame-colored hair, perpetual, toothy smile and inability to keep a poker face, I would be the world’s most recognizable spy. Because travel informs so much of my writing and cooking, I laugh about this, too. How could I not mention sunny Morocco when discussing Moroccan couscous salad? I couldn’t. Morocco’s national dish That brings me to this month’s offering, Moroccan couscous salad. Once the national dish of Morocco, couscous consists of tiny, steamed balls of semolina. To prepare this food, Moroccan cooks may use a couscousiere, which resembles an oversized double boiler. Desiring authenticity, I had picked up one of these big pots at a souk in Marrakech. After dragging it over the Atlas Mountains, to the Western Sahara and back to Kennedy Airport, I promptly shoved the aluminum contraption into a closet. Unfortunately for my couscousiere, I had found instant …