**Prepare the chicken**
Season the chicken breasts with salt, black pepper, paprika, and cumin on both sides.
**Sear the chicken**
Heat olive oil in a large skillet over medium-high heat. Add the chicken breasts and cook for 4–5 minutes per side, or until golden brown. Remove the chicken from the skillet and set aside.
**Sauté the jalapeños and garlic**
In the same skillet, reduce the heat to medium. Add the sliced jalapeños and minced garlic, sautéing for 1–2 minutes until fragrant.
**Make the sauce**
Pour in the chicken broth, scraping up any browned bits from the skillet. Let it simmer for 2 minutes. Reduce the heat to low and stir in the heavy cream and Parmesan cheese, if using. Whisk until smooth and creamy.
**Simmer the chicken**
Return the chicken breasts to the skillet, spoon the sauce over them, and simmer for 8–10 minutes, or until the chicken is cooked through (internal temperature of 165°F/74°C).
**Finish with lime and cilantro**
Stir in the lime juice for brightness and garnish with fresh cilantro.
**Serve**
Serve hot over rice, pasta, or with a side of steamed vegetables.