Grilled fruit is a culinary exercise in smoky sweetness. Firm fruits like apples and pears work best for grilling. Pineapple and banana are also good choices. Cut your fruit into large slices, and soak them in water for about 30 minutes so they don't dry out on the grill. You'll want to coat the fruit in butter or oil and be sure to clean off the grates. Serve as an appetizer or a delicious dessert paired with a dry white wine.