Combine Mashed Potatoes (1 2/3 cup), All-Purpose Flour (4 teaspoon), Milk (1 tablespoon), Shredded Extra Sharp Cheddar Cheese (1/3 cup), Fresh Rosemary (1/2 teaspoon), Dried Onions (1/2 teaspoon), Smoked Paprika (1/4 teaspoon), Salt (1 pinch) and yolk of an Egg (1). Mix until smooth and uniform.
Use a large ice cream scoop to scoop out uniform portions of the batter and form them into croquettes. Dip each croquette in Egg (1) then coat in Seasoned Breadcrumbs (1/2 cup).
Take a large skillet and fill it with about 2 inches of Vegetable Oil (to taste). Heat it up over medium high heat.
Pan-fry the croquettes in 2 batches of 4 so that the pan doesn't get overcrowded. They need to cook for about 2-3 minutes on each side to get golden brown.
Remove them to a plate lined with paper towel to blot them and repeat with the second batch. Once they are all done, serve them immediately and enjoy!