If you've made a number of these "whipped" desserts before, you'll find this one just a bit different. Using peaches is a nice surprise. This dessert or salad (whichever you choose to call it) is an excellent accompaniment to baked ham. Peaches and ham naturally go together.
I've used fresh and canned and both work well. If you use fresh, be sure to peel them. If you used canned, be sure to use the ones in light syrup, not heavy. You'll have enough sweetness in the brown sugar and whipped topping.