Using a mandoline or vegetable slicer (I used the slicer on my grater and it worked perfectly), slice the radishes, cucumbers, and tomatoes into a large bowl. Add the shallots, sprinkle and stir in a little bit of salt over the vegetables and set aside for about 15 minutes.
In a small bowl, whisk together apple cider vinegar, water, salt and pepper.
After 15 minutes, remove any liquid sitting on the bottom of the vegetable bowl. Then mix in the apple cider vinegar dressing. Stir in 2 tablespoons of the sour cream and 2 tablespoons of dill. If you like it creamier, then add another tablespoon of sour cream, leaving one tablespoon as a garnish. Transfer to a serving bowl or platter.
Serve with the last dollop of sour cream, dill and sprinkle with paprika and ground pepper is you so desire. Enjoy with grilled or roasted meats and fish.
