No bake pistachio dessert.
Line a 9x13 pan with Ritz crumbs and drizzle with melted butter. Make sure all the crumbs are coated and press down into the bottom of the pan to make your crust.
Whisk milk and pudding until just set and then fold in softened ice cream. Spread evenly over the top of the cracker crumbs - careful not to lift the crumbs into the pudding mixture.
Cover pan with cling wrap and let set in the fridge for 4 hours (or overnight). Top with Cool Whip or whipped cream and serve immediately or refrigerate.
Place your mixing bowl and whisk attachments in the freezer for at least 3 minutes
Combine all the ingredients in the cold bowl and whip on high until soft peaks form, about 4 minutes.