Preheat your oven to 425°F and line a baking sheet with parchment paper or lightly spray with cooking oil.
Slice the chicken breast into bite-sized strips for even cooking.
In a shallow bowl, mix the almond flour with garlic powder, salt, and pepper.
Whisk the egg white in another bowl until slightly frothy.
Dip the chicken pieces first into the egg white, then dredge them in the almond flour mixture, ensuring they are evenly coated.
Place the coated chicken pieces on the prepared baking sheet.
Bake in the preheated oven for about 15-18 minutes, turning halfway through to ensure even crispiness.
In a small saucepan, warm the low sugar sweet and sour sauce over low heat until just heated.
Once the chicken is crispy and fully cooked, remove from the oven and drizzle the warm sweet and sour sauce over the pieces or serve on the side for dipping.
Serve immediately and enjoy your delicious, tangy, and crispy meal.