Chemistry of cookies

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Across
  1. 2. melting sugar with temperature
  2. 4. Crunchy
  3. 6. Everyone likes to eat with milk/tea
  4. 9. heat control
Down
  1. 1. egg yolk
  2. 3. curious
  3. 4. chemical reaction
  4. 5. ata
  5. 7. the smell
  6. 8. ghee is prepared from ....