Place the blueberries in a single layer on a rimmed baking sheet. Place in the freezer for 1 hour.
Transfer to a freezer safe storage container or food storage bag and store for up to 6 months.
Use right from frozen in smoothies, crisps, crumbles, pies and pancakes (dropped right into the cakes on the griddle). However, frozen blueberries can tint baked goods like scones and muffins to a purple color. You can still use the frozen berries, but do this first: rinse them several times in cold water, then pat them dry with paper towels on the top and bottom.