Put potatoes in a large pot, cover them with two inches of water, set them over high heat and set your timer for 25 minutes and bring to a boil. When the timer rings, the potatoes are either done or need up to 5 minutes more. If a skewer goes in them easily, they’re done. Drain and let cool until you can pick them up.

Meanwhile, make the pimento cheese by mixing the cheddar(s), pimentos, mayo, scallions, celery salt and cayenne or hot sauce together until evenly combined. Season to taste with salt and freshly ground black pepper.

Cover a large baking sheet with foil and lightly coat foil with nonstick spray. Heat oven to 425 degrees.

When potatoes are cool enough to handle, halve lengthwise and scoop out all but the last ¼-inch thickness of skin and potato. Arrange potatoes on prepared baking sheet. Season cavities with salt and pepper.

Mash the potato centers in a bowl until smooth and mix with half (¾ cup plus 1 tablespoon) of prepared pimento cheese. Season with more salt and pepper to taste.

Use a small spoon, butter knife or small offset spatula to press/pack filling back into emptied potatoes, smoothing the tops. Nestle them in the pan tightly to discourage them from toppling and spilling their contents.

Bake 15 to 20 minutes, until melty and sizzling, then run under broiler until lightly browned on top. Let cool 5 to 10 minutes before serving, garnishing with paprika and/or chives.