Potato Soup with Whey

In a pot over low heat, bring the milk along with the cream to a precise temperature of 74°C, making sure to use a thermometer to constantly monitor the temperature. It is essential not to let the mixture reach a higher temperature, as this could affect the final texture of the cheese. Once you reach the desired temperature, turn off the heat and add the vinegar, stirring vigorously for 30 seconds to help coagulate the milk. Then, add the salt, continuing to stir for another 30 seconds until it is completely dissolved. After this process, cover the pot with a clean towel and let the mixture sit for 20 minutes, allowing the cheese to form.

In the meantime, take advantage of this time to prepare the vegetables. Chop the onion and leek into thin rings, then add them to an aluminum pot along with the salt and melted butter. Let the vegetables sauté over low heat for about 10 minutes, stirring occasionally to prevent sticking. This process will intensify the flavors and add a delicious base to the soup. After the vegetables have sautéed, strain the whey obtained from the milk through a cheesecloth or a very fine sieve to remove any solids.

Next, chop the other vegetables, except for the potatoes, and add them to the pot with the onion and leek. Let them combine and sauté together for 5 minutes, then add the diced bacon, sage, oregano, and the stock cube. After a minute, add the reserved whey and an additional 500 ml of water. Cut the potatoes into cubes and add them to the flavored soup.

When you see the first bubbles of boiling, reduce the heat to low and let the soup simmer gently until the potatoes are cooked, but they should be firm and hold their shape well. It is important not to overcook them to maintain the desired texture. Add the pepper and taste the soup to check if more salt is needed. Finally, add the freshly chopped parsley and turn off the heat.

This recipe not only provides you with a delicious soup but also rewards you with fresh homemade cheese, an ideal choice for a snack or to enrich other dishes. Adjust the amount of water based on how many potatoes you have and how thick you prefer the soup. Enjoy!