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1
Adjust oven rack to lower and lower-middle position and preheat oven to 375u00b0F. Mix chili powders, onion powder, 1 teaspoon salt, 1/2 teaspoon pepper, cocoa powder, and olive oil in a small bowl. Carefully separate the turkey skin from the meat by inserting your hand at the bottom of the breast, taking care not to tear it. Liberally rub spice mixture on turkey and under the skin.
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2
Transfer turkey to a roasting pan and place in the oven to cook, basting every 30 minutes or so with pan juices.
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3
Meanwhile, grease a 13- by 9- by 2-inch baking dish. Line it with 1/3 of the potatoes in a single, overlapping layer. Season with salt and pepper. Top with 1/3 of the habaneros and garlic. Follow with 1/3 each of the cilantro, pepper jack cheese and Parmesan cheese. Repeat until you have three layers, ending with cheese on top. Pour 1 1/2 cups broth and half and half on top.
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4
After the turkey has roasted for about 25 minutes, place potatoes in the oven. Continue roasting until potatoes are tender and turkey registers 155u00b0F on an instant-read thermometer, about 1 hour 45 minutes total. Tent with foil if meat starts to become too dark. Remove turkey and potatoes from oven.
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5
Put roasting pan on the stove top over medium-high heat. Deglaze the pan with tequila, scraping up browned bits using a wooden spoon. Simmer for a minute and add remaining 1/2 cup chicken stock. Bring to a boil. Swirl in butter and allow sauce to thicken and reduce slightly.
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6
Carve the turkey breast meat from the bone and arrange the slices on a serving platter. Pour sauce over turkey. Sprinkle potatoes with remaining cilantro. Serve.
