Preheat the oven to 450°F (230°C). Line or grease a baking sheet.
In a large bowl sift together 2 cups all-purpose flour, 1 tablespoon baking powder, 1/4 teaspoon baking soda, 1 1/2 teaspoons sugar, and 1/2 teaspoon salt; optionally chill the dry mix for 20 minutes for better results.
Add 6 tablespoons frozen salted butter (or margarine/shortening) cut into small pieces and use a pastry cutter or fork to work it into the dry ingredients until the mixture resembles coarse sand with pea-sized pieces.
Whisk 1 cup milk (or unsweetened non-dairy milk) with 2 tablespoons lemon juice in a separate bowl.
Make a well in the dry ingredients and gently stir while adding the milk mixture about 1/3 cup at a time until the dough is just combined and slightly sticky; you may not need all the liquid.
Turn the dough onto a lightly floured surface, dust the top with flour, fold the dough over onto itself 4–5 times without kneading, and form into a 1-inch-thick disc.
Use a 2-inch biscuit cutter to cut biscuits, pressing straight down and slightly twisting; reform scraps to cut the remaining biscuits until you have eight total. Place them on the prepared baking sheet so they touch in two rows.
Press a small divot into the center of each biscuit, brush the tops with 2 tablespoons melted butter (or margarine), and bake at 450°F for 20 minutes, rotating the pan halfway, until golden and fluffy.
While biscuits bake, trim excess fat from 1 lb boneless skinless chicken thighs and split each thigh in half; season generously with salt and lightly sprinkle with 1/4 teaspoon garlic powder.
In a medium bowl whisk 2 large eggs, 1/3 cup hot sauce, and 2 tablespoons water; set aside.
In another bowl combine 1 cup self-rising flour and 1/2 teaspoon black pepper. Dip each seasoned chicken piece into the hot sauce-egg mixture, then dredge in the seasoned flour to coat.
Pour peanut oil into a large pot to a depth sufficient for shallow frying and heat to 350°F (use a candy thermometer). Fry the chicken pieces in batches, maintaining a 350°F oil temperature, until golden and cooked through, about 4–5 minutes per batch; pieces should start to float when done.
Assemble sliders by splitting the warm biscuits, placing a fried chicken piece inside, topping with pickle slices, and drizzling with honey. Serve immediately.