Reuben Sliders Recipe

14 ounces sauerkraut
2 tablespoons Russian dressing (or Thousand Island, plus more for dipping)
1/2 teaspoon caraway seeds (optional)
12 Hawaiian dinner rolls
8 slices Swiss cheese
1/2 pound deli corned beef (thinly sliced)
1/2 cup unsalted butter (melted)
1-1/2 teaspoons dried onion soup mix
1/2 teaspoon poppy seeds
Garnish (Optional)
Fresh chopped parsley for garnish (optional)