Whip your cream: Pour heavy whipping cream into your big mixing bowl and whip it with your electric mixer on medium speed for 3-5 minutes until you see stiff peaks forming beautifully.
Combine condensed milk and vanilla: Stir in 1 can sweetened condensed milk and 2 teaspoons vanilla extract.... Then gently fold them together about 8-10 times using your rubber spatula to keep things fluffy.
Fold in the cherries: Pour cherry pie filling into your cream mixture and fold gently about 12-15 times to spread those cherries around without smashing all your hard work flat.
Add the marshmallows: Fold in 2 cups mini marshmallows carefully so they stay puffy and distribute evenly throughout your salad creation.
Toss in the nuts: Fold in 1 cup chopped pecans or walnuts and save ½ cup for sprinkling on top to make your dessert look fancy and delicious.
Transfer to serving dish: Scoop your cherry fluff salad into your pretty serving bowl and spread it out evenly using your spatula for a gorgeous presentation.
Chill and garnish: Top your salad with those reserved nuts and maraschino cherries, cover it with plastic wrap, and refrigerate for at least 2 hours before you serve it.