Write SQL query to solve given problem: What ingredients does the longest cooking time recipe have?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT T3.name FROM Recipe AS T1 INNER JOIN Quantity AS T2 ON T1.recipe_id = T2.recipe_id INNER JOIN Ingredient AS T3 ON T3.ingredient_id = T2.ingredient_id ORDER BY T1.cook_min DESC LIMIT 1