The likely reason why your potato soup is so bland is because it's missing some flavor building ingredients such as sauteed aromatics like garlic, leeks or onions or your potato soup may be lacking seasoning that is added at multiple stages of cooking, not enough salt or you didn't add an acidic component like lemon juice or vinegar.
Potatoes themselves have a mild flavor and they require the help from other ingredients to improve the flavor of the potato soup.
Common mistakes that are made when making potato soup are using the wrong type of potato, overcooking the potatoes until they become mushy, cooking the potato soup at too high of a temperature and not mashing or blending the potatoes enough for a smooth texture.
Also over salting, rushing the cooking process and not allowing the flavors to develop can ruin potato soup and make it turn out bland.
Potato soup is a rich and comforting dish which is flavorful and hearty.
Potato soup gets it's flavor and heartiness through it's creamy texture and also the combination of satisfying ingredients.
The starchy potatoes in potato soup also creates a naturally thick base and additions such as aromatic vegetables like garlic and onions and bacon and cheese also provide layers of taste in the potato soup.
Potato soup can also be customized with a variety of toppings, which makes it a very versatile comfort food.
Potato soup can also be beneficial to your health as it has good nutritional content, which includes vitamins, minerals and antioxidants like vitamin C and potassium.
Eating potato soup can also aid in weight loss and weight management by promoting fullness and aiding digestion through fiber and help with hydration as well.
Good additions to potato soup to add flavor to potato soup are sage, rosemary, thyme and or a bit of oregano.
You can also add some sauteed onions and garlic, dairy like heavy cream or sour cream to add richness to the potato soup and spices like paprika, nutmeg or chili powder for heat and depth.
You can also boost the flavor of potato soup by adding toppings like fresh crispy bacon, bacon bits, fresh chives or even add some shredded cheese or fresh greens like spinach ad the end of cooking.