Wash and dry produce. • Dice potatoes into ½-inch pieces. Place in a medium pot with enough salted water to cover by 2 inches. Bring to a boil and cook until tender, 10-12 minutes. Reserve ¼ cup potato cooking liquid, then drain. Return potatoes to pot and keep covered until ready to mash in Step 5. • Drain corn, then pat dry with paper towels. Peel and mince or grate garlic.
In a large bowl, whisk together one packet of sour cream and 2 TBSP water (two packets of sour cream and 4 TBSP water for 4 servings). • Place panko in shallow dish; season with a pinch of salt and pepper. • Pat chicken* dry with paper towels; slice lengthwise into 1-inch-thick strips (we got 3-4 strips per chicken cutlet). Season all over with Fry Seasoning, salt, and pepper.
Melt 1 TBSP butter (2 TBSP for 4 servings) in a large pan over medium-high heat. Add corn; season with salt and pepper. • Cook, stirring occasionally, until golden brown and lightly charred in spots, 4-6 minutes. • Turn off heat; transfer to a plate and cover with foil to keep warm. Wipe out pan and let cool slightly.
Melt 1 TBSP butter (2 TBSP for 4 servings) in pan used for corn over medium heat. Add garlic and sprinkle with flour; stir to combine. Whisk in stock concentrate and ½ cup water (1 cup for 4). • Bring to a simmer and cook until thickened, 1-2 minutes. Season with salt and pepper. • Turn off heat; transfer gravy to a small bowl and cover with foil to keep warm. Wash and dry pan. TIP: Short on time? Use a second pan for the gravy while the corn cooks!
To pot with potatoes, add remaining sour cream and 2 TBSP butter (4 TBSP for 4 servings); mash until smooth, adding splashes of reserved potato cooking liquid as needed. Taste and season with salt and pepper. • Keep covered off heat until ready to serve.
Heat a ½-inch layer of oil in pan used for gravy over medium-high heat. • Meanwhile, add chicken to bowl with sour cream mixture; turn to evenly coat. Working one piece at a time, press chicken into seasoned panko until fully coated. TIP: For less mess, use tongs to dip and transfer. • Once oil is hot enough that a pinch of flour sizzles when added to the pan, add chicken and cook until golden brown and cooked through, 3-5 minutes per side. (TIP: Fry in batches if necessary; lower heat if chicken begins to brown too quickly.) Transfer chicken to a paper-towel-lined plate.
Divide chicken, corn, and mashed potatoes between shallow bowls in separate sections. • Top mashed potatoes with gravy and cheddar. (TIP: If gravy is too thick, stir in 1 TBSP hot water before serving; 2 TBSP for 4 servings.) Serve. Chicken is fully cooked when internal temperature reaches 165°.