These are the most famous and best Kosher places in town:

1. Al Galope is, for locals, the most frequented Kosher Grill in town. You can order a “Parrillada”, which is a small grill they bring to your table, with the most traditional cuts of Argentine meat, heated with coals beneath the grill. The most famous Argentine cut is the “bife de chorizo” (sirloin strip stake). Al Galope is located in the Jewish neighborhood of Once, on Tucumán 2633. You can call them at +54-11-4863-6888 to place a reservation if you want to make sure you get a good table on a crowded day or night. If you go at night, please let your concierge in the hotel order a cab for you and ask the people at the restaurant to order a cab for you to take you back to the hotel. The restaurant opens at 8 PM for dinner. Please check the TripAdvisor reviews to see what people have to say about Al Galope: https://www.tripadvisor.com/Restaurant_Review-g312741-d2403064-Reviews-Al_Galope-Buenos_Aires_Capital_Federal_District.html
   
   
2. El Paisano is a great, new Kosher restaurant, located in the neighborhood of Belgrano, some 20 minutes from the center of town by taxi. The place used to be a Chabad synagogue. The ambiance is very good and the place well-decorated, especially for a good evening meal. It is located on O´Higgins 2358. This is their Facebook Page: https://www.facebook.com/el.paisano.kosher.house. These are their reviews on TripAdvisor: https://www.tripadvisor.com/Restaurant_Review-g312741-d12323350-Reviews-El_Paisano_Kosher_House-Buenos_Aires_Capital_Federal_District.html
   
   
3. Ajim is the Middle-Eastern Kosher Deli I choose to go to 95% of the times in my tours. It is owned by two brothers: Nacho and Guido. Hence its name “Ajim”, which in Hebrew means “brothers”. Here you can have superb lahmajim (Arabic “meat pies” that look like hamentashen but are filled with ground meat and tomato paste that makes it taste like the filling of stuffed-cabbage (delicious, for those who eat meat!). They also have kibbe, also a Syrian delicacy, made with whole wheat on the outside and ground meat inside. Kosher meat and chicken Argentine empanadas. Excellent Ashkenazi knishes. You can also have delicious hot-pastrami, on the plate or on a baguette. And for those who do not eat meat (like myself), they have excellent falafel, on the plate or on a lafa (burrito)! Ajim is located also in Once, on Tucumán 2620. Their web site is: http://ajim.com.ar/ajim.html You can order food for Shabbat at Ajim and they will deliver it to your hotel before Shabbat.
   
   
4. Glitter Restaurant. This is a very upscale, top-of-the-line Kosher restaurant located inside the Alvear Icon Hotel, on Aimè Painè 1130, in Puerto Madero. They are open Monday thru Thursday. They are closed on Sundays. Take a look at their web site: http://alvearicon.com/en/restaurant-bar/glitter-restaurant-puerto-madero/
   
   
5. Pi-Chi-Klin Kosher Suhi Tucumán is also an excellent Japanese Kosher Sushi place, across from Al Galope on the same street of Ajim, in the Jewish neighborhood of Once. It is located on Tucumán 2648. Call them before going to make sure they are open: +54-11-4863-3905.
   
   
6. Venecia. If you want to eat Kosher but not meat, try Venecia, an excellent Kosher pizzeria. They have great pizzas, pasta and cheese empanadas (called “sambusak”) and spinach “boyos” (like knishes). It is located between Ajim and Pi-chi-klin, on Tucumán 2640. This is their Facebook Page: https://www.facebook.com/pages/category/Local-Business/Pizzer%C3%ADa-Venecia-kasher-1790081281305452/

For a more extended list of Kosher places, please check:
https://www.totallyjewishtravel.com/kosherrestaurants-TJ5232-Buenos_Aires_City_Argentina-Kosher_Eateries.html

For a great article on Jewish food in Buenos Aires, check here:
https://www.myjewishlearning.com/the-nosher/the-best-jewish-food-in-buenos-aires/?utm_content=bufferc3dd3&utm_medium=social&utm_source=thenosher&utm_campaign=buffer&fbclid=IwAR1-5-7LoARnbP6XiQzqNlENJWY-ZwRTGmbWkovN2_1sq8u0gytn8ZXxoaw