Start by combining softened butter, miso paste, honey, rice vinegar, and black pepper in a bowl. Mix until it forms a smooth, creamy paste. This mixture is the flavor base, so make sure everything is well blended. The aroma at this stage is already incredible.
Add the chicken thighs into the bowl and massage the mixture all over them. Make sure every piece is evenly coated, especially under the skin if
Place the coated chicken in a single layer in a roasting pan. Avoid overcrowding so the chicken roasts instead of steaming. Proper spacing helps achieve that crispy, golden exterior.
Put the pan in a preheated oven at 425°F (220°C). Roast for about 30–40 minutes, turning the chicken once or twice. This helps it cook evenly and develop a rich, caramelized finish.
Ensure the internal temperature reaches 160–165°F for safe cooking. Let the chicken rest for a few minutes before serving. This keeps the juices locked inside for maximum tenderness.