In the food context, 'chakkakuru' refers to the seeds or nuts of the jackfruit tree (Artocarpus heterophyllus). Jackfruit is a tropical fruit native to South Asia and is known for its large size and distinct flavor. The seeds of the jackfruit, known as 'chakkakuru' in Malayalam (a language spoken in the South Indian state of Kerala), are commonly used in traditional cuisine.

Here are some examples of how 'chakkakuru' is used in culinary preparations:

1. Curry: Chakkakuru curry is a popular dish in Kerala cuisine. The seeds are boiled, peeled, and then cooked in a spicy coconut-based curry along with other ingredients like onions, tomatoes, and spices. It is typically served with rice or flatbread.

2. Stir-fries: Chakkakuru can be sautéed with spices, onions, and other vegetables to make a flavorful stir-fry. It can be enjoyed as a side dish or added to rice dishes.

3. Roasted: The seeds can be roasted and consumed as a snack. They are first boiled, then roasted until they become crispy. Roasted chakkakuru seeds are often seasoned with spices like chili powder, turmeric, and salt for added flavor.

4. Pickles: Chakkakuru pickle is another popular preparation. The seeds are boiled, sliced, and then marinated in a tangy and spicy mixture of vinegar, spices, and oil. The pickled chakkakuru can be enjoyed as a condiment with rice or as a side dish.

5. Soups and stews: Chakkakuru can be added to soups and stews to enhance their flavor and texture. The seeds add a unique nutty taste and a hearty element to the dish.

In addition to its use in chakkakuru preparations, jackfruit seeds are versatile and can be used in various other ways in the culinary world. Here are some similar things or ingredients that are used in a similar manner:

1. Chestnuts: Like chakkakuru, chestnuts are seeds that are commonly used in cooking. They can be roasted, boiled, or used in various dishes like soups, stews, stuffings, and desserts.