In a large bowl, gently stir together all of the ingredients.
Notes
*I used unsweetened coconut, but any kind will work fine.
Make sure that you drain the fruit really well so that you don't have a watery ambrosia salad.
Gently fold together the salad ingredients so that you don't smash the cherries and oranges.
I like the rich creaminess of a full-fat sour cream, but you can also substitute with low-fat sour cream for a lighter option. As an alternative, try making your ambrosia salad with yogurt (if you do this, I would recommend a plain, whole milk Greek-style yogurt).
Can ambrosia salad be made the day before? Yes -- you can prepare this salad up to 24 hours in advance. I find that the ambrosia is best, however, when enjoyed within 4-6 hours of preparation. The fruit releases liquid as it sits, so the sour cream dressing becomes thinner the longer that it stays in your refrigerator.
How long does ambrosia salad last? The fruit salad will stay fresh in the refrigerator for up to 3 days.
Can ambrosia salad be frozen? No, I don't recommend freezing this salad, because the sour cream may "break" when thawed and the fruit will have an odd, mushy texture.
Is ambrosia salad healthy? Nope -- not particularly! This is a treat that is meant to be enjoyed on special occasions (not as a replacement for fresh fruit). One serving of the salad has about 300 calories.