Milk and Yoghurt ? Mix and you will have the tastiest Cottage Cheese that's ready in 5 min 

it's very easy to make homemade curd cheese, without any vinegar or lemon. You only need 2 Ingredient, and few minutes of your time:
* 1 litre of milk
* 1 litre of natural yoghurt ( also it can be made with buttermilk instead)