Title-Case Recipe Names With Hyphens

PandasHardSenior level~10 min

Problem

A recipe site stores names in inconsistent casing inside the `recipe_titles` DataFrame. Convert each `raw_title` to title case: the first letter of every word becomes uppercase and the remaining letters of the word become lowercase. A word may contain hyphens, and each hyphen-separated part must also be capitalized — for example `slow-cooked` becomes `Slow-Cooked`. Spaces, hyphens, and all other characters stay exactly where they are. Return `recipe_id`, the unchanged title as `original_title`, and the converted text as `title_cased`, ordered by `recipe_id`.

Input data

Example rows — the live problem includes the full dataset.

recipe_titles

recipe_id	raw_title
1	creamy tomato BASIL soup
2	the SLOW-cooked stew
3	pan-seared SALMON fillet
4	oven-baked SWEET-potato wedges

Expected output

Your answer should return 4 rows with the columns recipe_id, original_title, title_cased.

Starter code (Pandas (Python))

import pandas as pd

def title_case_recipe_names(recipe_titles) -> pd.DataFrame:
    # Your code here
    return recipe_titles

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