2 servings; 110 cal
5 g butter
5 g all purpose flour
1/8 teaspoon salt
1/2 cup milk (15 g sour cream/45 g water)
28 g shredded cheddar cheese
Add the butter to a large (2 quart / 2 litre) microwave-safe dish. Melt in the microwave on high for 30 seconds, or a few seconds longer if necessary.
Whisk in the flour, then return to the microwave and cook for a further 10 seconds.
Whisk in the milk until smooth.
Microwave on high for 2 minutes, whisking halfway through.
Stir in the cheese and microwave on high for a further 30 seconds.
https://yousaypotatoes.com/microwave-cheese-sauce/#recipe