Preheat your oven to 400°F and line a baking sheet with parchment paper for easy cleanup.
Cut the chicken breast into even, bite-sized nuggets to ensure they cook at the same rate.
In a small bowl, whisk the egg until the yolk and white are fully combined.
In a separate shallow dish, mix the almond flour with smoked paprika, garlic powder, sea salt, and black pepper.
Dip each chicken piece into the egg wash, then roll it in the almond flour mixture until evenly coated.
Arrange the nuggets on the baking sheet and bake for 15 to 18 minutes, flipping once halfway through, until they reach an internal temperature of 165°F.
While the chicken is in the oven, whisk together the Dijon mustard, raw honey, and apple cider vinegar in a small bowl until smooth.
Remove the nuggets from the oven and serve immediately with the honey mustard sauce for dipping.