Slice the chicken breast into even 1-inch thick strips.
Place the chicken in a bowl with the buttermilk and let marinate for at least 15 minutes.
In a shallow dish, combine the almond flour, smoked paprika, garlic powder, onion powder, sea salt, and black pepper.
Remove each chicken strip from the buttermilk, allowing excess to drip off, and dredge thoroughly in the almond flour mixture.
Heat the avocado oil in a large skillet over medium heat.
Add the chicken to the skillet and cook for 4-5 minutes per side until the coating is golden brown and the internal temperature reaches 165°F.
In a small ramekin, whisk together the Dijon mustard, honey, and apple cider vinegar until smooth.
Serve the hot, crispy chicken strips immediately with the honey-mustard dipping sauce.