Among the recipes with alcohol content over 10, which recipe takes the longest to prepare?
with alcohol content over 10 refers to alcohol > 10; takes the longest to prepare refers to MAX(prep_min)
SELECT T1.title FROM Recipe AS T1 INNER JOIN Nutrition AS T2 ON T1.recipe_id = T2.recipe_id WHERE T2.alcohol > 10 ORDER BY T1.prep_min DESC LIMIT 1