Devilishly spicy, super saucy, and almost virtuous chicken in three steps. Napkins, anyone?
Make the Chicken: On a rimmed baking sheet, combine flour, paprika, and 1 teaspoon coarse salt. Add chicken, toss to coat, and shake off excess.
In a large skillet, heat oil over medium-high. Add chicken, and cook, turning to brown on all sides, until cooked throughout, 15 to 20 minutes.
Meanwhile, in a large bowl, combine ketchup, butter, and hot sauce; season with salt. Add hot chicken, and toss gently to coat. Serve with celery sticks and dip.
Make the Dip: In a small bowl, combine cheese, yogurt, and lemon juice. Season with salt and pepper. Mix well with a fork, mashing cheese to combine.