What food is indigo in colour?

There are several foods that are indigo in colour. Here are a few examples:

1. Blueberries: These small, round fruits are known for their deep blue or indigo colour. They are rich in antioxidants and have a sweet and tangy taste.

2. Blackberries: Blackberries are closely related to blueberries and also have an indigo-like colour. They are slightly larger than blueberries and have a slightly tart taste.

3. Eggplant: Eggplant, also known as aubergine, comes in various colours, including a deep indigo variety. It is commonly used in many cuisines and has a mild, slightly bitter flavour.

4. Purple cabbage: Purple cabbage is a variety of cabbage that has dark purple or indigo leaves. It is often used in salads, stir-fries, and other dishes.

5. Acai berries: Acai berries are small, dark purple or indigo berries that are native to South America. They are known for their antioxidant content and have a slightly sweet and tart taste.

6. Concord grapes: Concord grapes are a type of grape that has a deep indigo colour. They are commonly used in jams, jellies, and juices.

7. Blue corn: Blue corn is a variety of corn that has blue or indigo kernels. It is used in various dishes, including tortillas, cornmeal, and popcorn.