Albert Barnes Commentary 2 Samuel 13:6-9

"So Amnon lay down, and feigned himself sick: and when the king was come to see him, Amnon said unto the king, Let her sister Tamar come, I pray thee, and make me a couple of cakes in my sight, that I may eat from her hand. Then David sent home to Tamar, saying, Go now to thy brother Amnon`s house, and dress him food. So Tamar went to her brother Amnon`s house; and he was laid down. And she took dough, and kneaded it, and made cakes in his sight, and did bake the cakes. And she took the pan, and poured them out before him; but he refused to eat. And Amnon said, Have out all men from me. And they went out every man from him." — 2 Samuel 13:6-9 (ASV)

Make me cakes ... a pan - The words used here occur nowhere else, and their etymology is doubtful. A particular kind of cake or pudding is meant (2 Samuel 13:8), called a לביבה lābı̂ybâh. According to some, based on its etymology, it was shaped like a heart.

The dish into which she poured the lābı̂ybâh was undoubtedly carried to him by a servant into the chamber where he was lying. From that room, with the doors open, he could see into the outer room where Tamar prepared the food.