Dry Chicken Cubes:
Arrange the chicken cubes on a plate and thoroughly dry them using paper towels.Mix Spice Blend:
In a small bowl, mix together the Italian seasoning, smoked paprika, salt, and pepper.Season Chicken Pieces:
Evenly dust the spice mixture over the chicken and stir to coat each piece.Sear Chicken in Butter:
Heat a large (12-inch) heavy skillet over medium-high heat. Add the olive oil and 1 tablespoon of butter. When the butter has melted, arrange the seasoned chicken in a single layer.Cook Until Golden:
Let the chicken sear without moving for 3-4 minutes, then turn each piece and cook for another 4-5 minutes until all sides are golden brown and the meat is fully cooked (internal temperature reaches 165°F or 75°C).Make Garlic Butter Sauce:
Add the remaining 2 tablespoons of butter and the minced garlic to the skillet. Cook for 1 minute, until the butter liquefies and the garlic becomes aromatic and soft. Remove from heat.Coat with Sauce:
Stir the chicken to evenly cover it with the garlic butter sauce. Garnish with optional parsley if desired.