Preheat the oven to 425°F and line a baking sheet with parchment paper.
In a bowl, mix almond flour, garlic powder, paprika, salt, and black pepper.
Drizzle the chicken pieces with olive oil, then toss in the almond flour mixture until coated.
Spread the chicken on the baking sheet in a single layer.
Bake for 18–22 minutes, turning once halfway through, until golden and cooked through.
In a small bowl, whisk together mayonnaise, hot sauce, keto sweetener, rice vinegar, and garlic powder.
Drizzle the Bang Bang sauce over the warm chicken and gently toss once or twice to lightly glaze the pieces.
Serve immediately.