Reese Witherspoon’s Four-Ingredient Fall Cocktail Has Gone Very Viral: If you are looking for a delicious Fall Coktail to sip around the house, you are in luck! Reese Witherspoonis proving she’s as good of a mixologist as she is an actress. She’s gone viral on TikTok after teaching fans how to make her four-ingredient Fall cocktail, the “Fizzy Apple Cider Cocktail.” For the simple recipe, all you have to do is mix together apple cider, a shot of Aperol, and soda water… and then top it off with some prosecco, and maybe add an apple slice garnish. Sounds simple and very good! Reece Witherspoon's 4 part cocktail.