Gajak
gachak
Gajak, also known as Tilsakri, Tilpatti or Tilpapdi) is a confection originating in north-central India. It is a dry sweet made of sesame seeds with (or without) peanuts and jaggery. The sesame seeds (til) are cooked in the raw sugar syrup and set in thin layers, which can be stored for months. Gajak is prepared with sesame seeds and jaggery with a method of preparation which is time-consuming. It takes about 10–15 hours to prepare 5–8 kilograms of gajaks. The dough is hammered until all the sesame seeds break down and release their oils into the dough.
Source: Wikipedia
Recipes

Gur ki Gajak Recipe: How to make Gur ki Gajak Recipe for Lohri at Home | Homemade Gur ki Gajak Recipe - Times Food
Easy Gur ki Gajak Recipe: Make the easy and delicious gur ki gajak recipe for festivals like lohri at home using ingredients like jaggery, ghee, peanuts, fennel seeds and more on Times Food...