Jamur Tiram Raja Mengkilap Mentega Kedelai

Bahan-bahan (4 porsi)

• 2 tablespoons mentega tawar
• 1 tablespoon kecap ringan
• 1/4 teaspoon kecap hitam
• 1/2 teaspoon Sayang
• 1 clove garlic ((grated or very finely minced))
• 1/4 teaspoon lada hitam
• 1 pound jamur tiram raja
• 2 tablespoons minyak sayur
• 1 daun bawang