4 to 6 16-ounce serving dishes or mason jars or a trifle bowl or large glass serving dish
In a chilled bowl, with chilled beaters, beat the cream and confectioners' sugar together until soft peaks.
Whisk together the sweetened condensed milk, pudding mix, half-and-half, sour cream and the salt in a large bowl.
Reserve 4 to 6 cookies for garnish and layer half of the remaining cookies among the bottom of 4 to 6 16-ounce serving dishes (or mason jars), or in a trifle bowl (or other large glass serving dish). Next, drizzle half of the caramel over the cookies, then a layer of half the bananas, then half the pudding mixture. Repeat the layers with the remaining ingredients. Top with the whipped cream and a butter cookie or cookies. Serve or chill up to overnight.