Not being American, I have no concept of the old fashioned version of this that was ultra sweet and thick with no fresh dill. I found this served with a piece of grilled sea bass very light and more-ish.
You need to make it about 2-3 hours before serving so the flavors have time to meld and they really do, it tastes completely different after several hours hanging out in the fridge. Check and tweak seasonings if necessary before serving.
3 cups thinly sliced peeled cucumbers
1 cup thinly sliced red onion
1/2 cup sour cream
1.5 tbsp white vinegar
1.5 tbsp minced fresh dill
1/2 tbsp granulated sugar
1/2 tsp salt or more to taste
1/4 tsp garlic powder or more to taste
In a medium mixing bowl stir together sour cream, vinegar, dill, sugar, salt, and garlic powder.
Add cucumbers and red onion; toss to coat.
Cover and refrigerate 2 or more hours.