Slice the chicken breast into even 1-inch thick strips to ensure uniform cooking.
Place the chicken strips in a small bowl and pour the buttermilk over them, tossing to coat. Let them marinate for at least 10 minutes.
In a shallow dish, whisk together the almond flour, arrowroot powder, sea salt, black pepper, garlic powder, and smoked paprika.
Remove each chicken strip from the buttermilk, allowing excess to drip off, then dredge thoroughly in the flour mixture, pressing firmly to create a thick crust.
Heat the avocado oil in a large non-stick skillet over medium-high heat until shimmering.
Place the chicken strips in the hot skillet and fry for 4-5 minutes per side until the coating is golden brown and the internal temperature reaches 165 degrees Fahrenheit.
While the chicken fries, steam the broccoli florets in a steamer basket over boiling water for 5 minutes until vibrant green and tender-crisp.
Plate the crispy chicken alongside the steamed broccoli and serve immediately while hot.