Season your chicken breasts generously with paprika, garlic powder, salt, and pepper. In a large skillet, heat olive oil over medium heat. Sear the chicken until golden brown on both sides.
Once the chicken is nearly cooked through, add butter, minced garlic, and minced ginger to the pan. Toss and baste the chicken in the foaming butter for a minute to infuse it with flavor. Remove the chicken from the pan and let it rest before slicing.
In the same pan over medium-low (don’t wash it—that’s where the flavor is), add the onions. Sauté until softened, then stir in garlic, ginger, and the sliced chilies. Cook until softened, about 3-4 minutes. Add the red curry paste and cook for 1–2 minutes.
Deglaze the pan with chicken stock, then pour in the coconut milk. Stir well to combine. Let the sauce simmer on low for about 5–10 minutes until it thickens slightly and the flavors meld together.
Add the lime juice, salt, and brown sugar and whisk to incorporate. Taste and adjust if needed.
Scoop a generous serving of rice into a bowl, alongside a pile of sautéed spinach. Place the sliced chicken on top. Ladle that creamy broth over everything until it pools at the bottom.
Top with fresh cilantro, more sliced chilies, and a squeeze of fresh lime.