Osaka is renowned as a food lover's paradise, a city where one can 'eat until they drop.' Its culinary landscape is vast, offering everything from savory street food to Michelin-starred dining. Many travelers arrive with a list of must-try dishes, and for dessert aficionados, the light, fluffy, and jiggly Japanese cheesecake is often at the top.

However, in a comprehensive review of the extensive travel notes provided for this guide, there is no specific information or mention of locations to purchase Japanese cheesecake in Osaka. The notes detail a wide array of other culinary experiences, including ramen, sushi, okonomiyaki, and various other sweets, but unfortunately, recommendations for this particular famed dessert are not available within the provided source material. Therefore, we cannot offer specific guidance on where to find the best Japanese cheesecake based on these firsthand accounts.

While specific recommendations for Japanese cheesecake are not available in the provided notes, Osaka and its surrounding areas offer a spectacular variety of other desserts that are highly praised by travelers. If you have a sweet tooth, consider exploring these delightful alternatives.

• Exquisite Parfaits: For a visually stunning and delicious treat, Pâtisserie & Cafe Del’immo in Umeda is a must-visit. Travelers rave about the beautiful parfaits, which are as impressive in person as they are in photos. With seasonal flavors like peach and fig, these multi-layered creations offer a complex and refreshing experience.

• Unique Ice Cream: In the scenic Arashiyama district of nearby Kyoto, you can find a unique tofu-flavored ice cream at a shop called Kyozuan. It's noted for its rich tofu taste, though it can be quite sweet. A combination flavor with yuzu is available to help balance the sweetness with a touch of tartness.

• A Legendary Patisserie: For true dessert connoisseurs, a trip to Patisserie es Koyama is worth the journey, located about an hour from Osaka. This dessert 'kingdom' features separate buildings for cakes, chocolates, and even a baking school. While cheesecake isn't mentioned, the signature 'Koyama Roll' is legendary for its rich egg flavor and fluffy texture. The puddings, macarons, and chocolates are also described as world-class.

• Luxury Souvenirs: When shopping in Umeda's department stores, look for Bâton d’or, a luxury, gourmet version of the classic Pocky sticks. Available only in the Kansai region, these treats come in flavors like Sugar Butter and Chocolat and make for an elegant and delicious souvenir.