Chipotle-Cacao Rubbed Sirloin Filets

Ingredients

• 4 to 6 ounce sirloin filets

  patted dry

• 1 teaspoon chipotle powder

• 1 teaspoon natural unsweetened cocoa powder

  not Dutch process

• 1 teaspoon garlic powder

• ¼ teaspoon ground cumin

• 1 teaspoon smoked paprika

• 1 ½ teaspoon fine sea salt

• ½ teaspoon freshly ground black pepper

• 1 tablespoon oil

  for cooking (we like avocado oil)

• 2 tablespoons unsalted butter

  cut into 4 pieces

• Sour cream

  for serving, optional