White Castle Burgers - Accurate Copycat Recipe!

Name: White Castle Burgers - Accurate Copycat Recipe!
Prep time: 20 min
Cook time: 15 min
Total time: 35 min
Cuisine: American
Ingredients: 1 lb Regular Ground Beef (NOT lean); Salt and Pepper; 2 Yellow Onions (peeled and chopped); 1/3 cup Dehydrated Onions; 1/4 cup Water; 12 Slider Buns; 12 Slices American Cheese (optional); Dill pickle slices (optional); Ketchup and Mustard (optional)