Pour 3 cups champagne/prosecco into a saucepan. Set over medium-high heat. Bring to a boil, reduce heat to medium, and boil until reduced to ¾ cup (about 12 to 16 minutes). Set reduced champagne aside to cool completely.

Meanwhile, prepare the graham cracker layer by pulsing the graham crackers and brown sugar together in a large food processor until they form a crumb. Add the melted butter and stir until moistened. Spoon ¼ cup of the graham cracker crumbs into each coupe glass. Use your hands to flatten into an even layer at the bottom.

To make the cheesecake layer: Add the cream cheese and granulated sugar to the bowl of a stand mixer, fitted with a paddle attachment. Beat on medium-high speed until smooth and creamy, about 2 minutes.

Scrape the sides and bottom of the bowl with a rubber spatula. Add the sour cream, vanilla extract, and ¾ cup of the reduced champagne. Beat for 2 to 3 minutes on medium-high speed until smooth and combined. Make sure there are no lumps.

Remove the bowl from your stand mixer. Add the cool whip and use a rubber spatula to fold the cool whip into the cheesecake batter until combined. Be careful not to deflate the air in the whipped cream as you fold it in.

Spoon the cream cheese mixture on top of the graham cracker crust in each coupe glass. Spread smooth from edge to edge.

Cover each coupe glass with plastic wrap and refrigerate for at least 4 to 6 hours to set. The longer, the better, up to 2 days ahead.

When ready to serve, prepare the strawberry topping. Add diced WOW Dreamberry strawberries to a medium bowl. Top with granulated sugar and champagne. Stir to combine. Let strawberries sit for at least 10 minutes before spooning on top of the cheesecakes.

While waiting for the strawberries, prepare the whipped cream. Add heavy cream, powdered sugar, and vanilla to the bowl of a stand mixer fitted with the whisk attachment. Whisk on medium-high speed until stiff peaks form, about 5 to 10 minutes.

Spoon whipped cream on top of the strawberries in each coupe glass. Decorate festively with gold or silver sprinkles, as desired.