Step 1: Season the cubed chicken with salt, pepper, garlic powder, and smoked paprika in a medium bowl until evenly coated.
Step 2: Heat the olive oil and 1 tablespoon of the butter in a large cast-iron skillet over medium-high heat until the butter is melted and bubbling.
Step 3: Add the chicken to the skillet in a single layer. Sear for 5-7 minutes, turning occasionally, until the chicken is golden brown and cooked through.
Step 4: Reduce the heat to medium-low and add the remaining butter, honey, and ground cinnamon to the skillet with the chicken.
Step 5: Stir continuously for 2-3 minutes as the butter melts and combines with the honey and cinnamon, creating a glossy sauce that coats every piece of chicken.
Step 6: Remove from heat immediately once the sauce is bubbly and thickened. Garnish with fresh parsley and serve hot.