01 - Pat the steak cubes dry with paper towels. Season evenly with kosher salt, black pepper, and smoked paprika.
02 - Heat a large skillet or cast-iron pan over high heat. Add 1 tablespoon of unsalted butter. Once melted and foaming, add half of the steak cubes in a single layer. Sear for 1 to 2 minutes per side until well browned and just cooked through. Transfer to a plate.
03 - Repeat with the remaining steak, adding a small amount of oil if the pan is dry. Transfer all steak to the plate once seared.
04 - Reduce the heat to medium-low. Add the remaining 2 tablespoons of unsalted butter and the minced garlic to the skillet. Cook, stirring, for about 30 seconds, just until fragrant.
05 - Return all steak bites to the skillet. Gently toss to coat in the garlic butter. Stir in chopped parsley and thyme. Serve immediately, garnished with flaky sea salt and additional parsley if desired.