Preheat oven to 400 degrees F. Line a baking sheet with parchment paper, then place a baking rack on the lined baking sheet.
In a medium saucepan over high heat, bring water to a boil. Remove from heat and stir in the contents of the Idaho Spuds Creamy Ranch Mashed Potatoes.
In a large bowl, combine the mashed potatoes, blue cheese, 1 egg, 1 cup flour, salt, and pepper.
In a small bowl whisk together 1 egg and milk. In a separate small pie plate or bowl add 1 cup flour, and in a 3rd bowl or pie plate add 1 cup panko bread crumbs.
Using a small ice cream scoop form mashed potatoes into balls then flatten slightly.
Place each mashed potato croquette in flour, then dip into the egg mixture, and then roll in the panko breadcrumbs.
Place each croquette on the baking rack that is on the lined baking sheet.
Bake at 400° for 20 minutes or until golden brown.
In a medium bowl, stir together melted butter and Buffalo wing sauce.
Add each croquette into the Buffalo Wing sauce mixture and return to the baking sheet.
Bake for 10 minutes more.
Serve with extra wing sauce and ranch or blue cheese dressing.