Heat a sous vide water bath to 140°F. *see table in post above for other temperature cooking options.
Mix together the salt, pepper, garlic powder, paprika and ground mustard.
Coat the chicken in the olive oil then rub the spice mixture on.
Place in a vacuum seal bag and seal.
Cook in the water bath for 2 hours.
Remove from bag (reserving bag juice) and set aside.
Combine the beaten egg with the milk and the reserved bag sauce.
Dip the chicken in the flour, then the egg mixture, then the panko breadcrumbs.
Heat the avocado oil in a large skillet for medium heat until the oil is shimmering.
Place the chicken tenders in the oil and cook until golden brown on the outside, about 3-4 minutes per side.
Remove and serve with honey mustard dipping sauce.
Honey Mustard Sauce:
Mix ingredients together until well combined.
Notes
You can sous vide these straight from frozen, just add 30 minutes to the cook time.
Heat the oil to shimmering BEFORE adding your chicken. Otherwise the breadcrumbs soak up the oil and become greasy.
You can substitute regular breadcrumbs instead of panko if needed - they will both work well.
While your chicken is frying, let it fully brown on one side before flipping to give the breadcrumbs time to stick to the chicken. In other words, let it be while it's cooking.