Preheat the oven to 400ºF and line a rimmed baking sheet with foil, set aside. Toss the radish in butter and season to taste with salt and pepper. Roast for 30 minutes, or until golden.
While radishes cook, prepare the chicken. Pound the chicken to and even 1/4 inch thickness between two pieces of plastic wrap. I often use a rolling pin or large bottle in this task. Season with salt and pepper, to taste.
Heat a large pan over medium-high heat and when hot, add the oil. When hot, lay chicken in the pan. Keep the chicken in a single layer and cook for 2-3 minutes per side. Place on a serving plate. Cover and keep warm.
To the now empty pan, add the butter and squash. Cook until tender, about 10 minutes. Add the vinegar, tea, allulose, cinnamon and thyme. Cook until the squash is completely tender and the sauce reduces to a quarter the original volume, about 15 minutes. Add the glucomannn and simmer for another 2 minutes, or until slightly thickened. Season to taste with more sweetener and/or vinegar, as desired. It should taste sweet and tart. The squash should be soft.
To serve, slice chicken, top with sautéed “apples,” and serve alongside the radishes, garnished with parsley.