In a medium bowl, combine the buttermilk and hot sauce. Add the tofu, turn to coat, and marinate in the refrigerator for at least 2 hours or overnight.
In a medium nonstick skillet set over medium-high heat, add the peanut oil and heat until shimmering, about 2 minutes.
Meanwhile, in a large bowl, whisk together the rice flour, cornmeal and bread flour. Carefully remove the tofu slices from the marinade and dredge each slice through the flour mixture, evenly coating all sides. Place the tofu slices in the oil and brown until they are golden and crisp on all sides, 7 to 8 minutes total. Use a slotted spatula to remove the tofu from the oil, and transfer to a paper-towel-lined plate. Season with salt and pepper and serve with honey mustard. Calories per Serving: 315; Sodium: 380mg; Total Carbohydrate: 19g; Fiber: 3g; Fat: 19g