Store them at room temperature and use them soon after your purchase them, since they tend to spoil quickly. Cuban sweet potato cush-cush See tropical yam . Don't confuse this with yamaimo . They use the word yam to describe a completely different vegetable, something we call a tropical yam.
Sweet potatoes are quite versatile, but they're most often baked, candied, or made into pies.
It's best not to boil them, as they'll lose much of their flavor. These firm, white-fleshed yams are widely used in tropical countries. They're somewhat bland and dry, so they're often served with spicy sauces. To everyone else in the world, a yam is what Americans call a tropical yam , a firm tuber with white flesh. This is a sticky yam that the Japanese peel and grate or julienne for salads.