We recently visited my parents in the States. Both of my sisters were in town at the same time as well. Now, there were a lot of things that we could have done together. There's one thing, though, that we all love: food. We watched a fair amount of the Food Network together, and one night we did a great activity: Chopped. Chopped is a TV show where the competitors are given a basket of ingredients, and they have to use all of the ingredients in one cohesive dish. (Click here to find out more about Chopped.)
My dad and sister picked the ingredients and acted as judges.
Our baskets had: feta cheese, sprinkles, sparkling water, whipped cream (the squirty kind in a can), sweet potato, kiwi, grapefruit, peach (doughnut), plum, gluten free crackers, jabanero pepper, and spinach (fresh leaves). In addition we could use any items in their house/garden.
Rather than just having one dish, we actually cooked both an appetizer and a dessert. All of the items had to be used, but we could choose which items to use in which dish.