Prepare all ingredients: 200ml milk, 2 potatoes, 1/2 onion, and 1 slice of cheddar cheese.

Peel the potatoes using a peeler.

Cut the potatoes into small pieces and chop the onion into halves for easier blending.

Blend the potatoes and onion in a blender until smooth. Alternatively, sauté them in oil for 1 minute before adding milk.

Pour the blended mixture into a pot and add 200ml milk.

Heat the mixture on the stove while stirring continuously for about 1 minute until bubbles appear.

Add 1 slice of cheddar cheese and season with salt, pepper, or sugar to taste.

Cook for an additional minute and remove from heat.