This is the 6231st most frequent Japanese word.
クック
"Cook" (person who cooks) or onomatopoeia for "clicking" sounds.
Here, 'クック' is used as a verb borrowed from the English 'cook,' meaning to prepare food.
私は新しいレシピ通りにクックしました。
I cooked according to the new recipe.
In this context, 'クック' is part of the compound word 'クックブック,' equivalent to 'cookbook' in English, referring to a recipe book.
クックブックを使って晩御飯を作りました。
I used a cookbook to make dinner.
Here, 'クック' is used as a proper noun or name, indicating a nickname derived perhaps from one's occupation or hobby related to cooking.