Sea Foam Salad is a retro lime Jell-O salad with pineapple, marshmallows, cottage cheese, and Cool Whip. A fluffy make-ahead side for potlucks and holidays.
In a large bowl, dissolve the lime gelatin in boiling water, stirring until fully dissolved.
Stir in the cold water and the crushed pineapple with its juice.
Refrigerate for about 1 hour, until the mixture is slightly thickened but not fully set.
Fold in the mini marshmallows and cottage cheese.
Gently fold in the whipped topping until everything is evenly combined and fluffy.
Transfer to a serving dish and refrigerate for at least 2 hours, or until fully set. Serve chilled. Top with maraschino cherries, if desired.
Notes
Make sure the lime gelatin is only slightly thickened before adding the marshmallows, cottage cheese, and whipped topping. If it sets too much, it will be harder to fold everything together smoothly.
Do not drain the crushed pineapple. The juice adds sweetness and helps the salad set with the right texture.
The whipped topping should be fully thawed before using so the salad stays light and fluffy.
Sea Foam Salad can be made the night before serving. Keep it covered in the refrigerator until ready to serve.
Store leftovers covered in the refrigerator for up to 3 days. Freezing is not recommended.