Use a couple of spoonful of sour cream in a mixing bowl or whatever your putting it in then add a little but of sugar like half a table spoon mix a bit then add a bit of whole milk taste the sauce if it's either too sweet add more sour cream if it's just right next step

Next step cut up as much cucumbers you would like either with or without the skin and even sweet onion cut as much as you like into the sauce mix well together

Final thing put in the fridge for a couple of hours like 1 to 2 hours and it gets better if you leave it in longer