Jenny's friend Tom had invited his boss over for dinner and asked Jenny to cook her famous Greek lamb stew for the occasion. Tom bought the lamb, olives, and wine listed in the recipe. She browned the lamb and added tomatoes, onions, and spices while Tom made a salad. Tom opened the bottle of cooking wine he had bought and poured the whole thing into the stew, which began to simmer fragrantly.

A half hour before the boss was due, Jenny tasted the stew and made a wry face, exclaiming, "Oh, this is awful! It's way too salty! Did you put more salt into the stew?"

Tom replied, "No. Except for the wine, I didn't touch the stew!"

Jenny mused, "Golly, where did so much salt come from?"

She checked the recipe to see if maybe she had added salt twice but didn't find any mistakes. Then she thought and asked, "What kind of wine did you use?"

"This cooking wine from the grocery store," he answered, handing her the empty bottle.

Reading the label, she said, "Oh, no! This brand is loaded with salt! The stew is ruined!"

Then Jenny had an idea and did something that saved the stew and the dinner.

What did she do?