Blueberries are small and sturdy, so they're perfect for tossing into cakes, muffins, cereal bowls, and fruit salads. Like other berries, they also make good preserves and tarts. Select firm, dark berries that have a whitish bloom on them. You can find fresh blueberries in the summer, but frozen blueberries are available year-round and work well in many recipes. They're very perishable, so keep them refrigerated and use them as soon as possible. You can also buy blueberries frozen, dried, or canned. Frozen berries get a little mushy after they're defrosted, but they'll work well in many recipes.