Preheat your oven to 425°F and line a baking sheet with parchment paper.
In a shallow bowl, pour the buttermilk and add a pinch of salt and pepper.
Place the chicken breast in the buttermilk, ensuring it is fully coated, and let it marinate for at least 30 minutes (or up to 2 hours in the refrigerator).
In another bowl, mix the almond flour, garlic powder, paprika, and a little extra salt and pepper.
Remove the chicken from the buttermilk, allowing excess liquid to drip off, then dredge the chicken in the almond flour mixture, ensuring an even coating.
Place the coated chicken on the prepared baking sheet. Lightly drizzle or spray the top with olive oil to help achieve extra crispiness.
Bake in the preheated oven for 20-25 minutes, or until the chicken is cooked through and the coating is golden and crispy. For extra crispiness, you can turn on the broiler for the last 2-3 minutes, but watch carefully.
Remove from the oven, let rest for a couple of minutes, then serve immediately.