"Why this recipe works:In this cake, cream cheese adds richness and tangy flavor to classic, buttery pound cake. We let the pure flavors of eggs and butter take center stage, adding only a few teaspoons of vanilla and a moderate amount of sugar. For a velvety texture, extra yolks and lower-protein cake flour were key. And to achieve a tight, fine crumb, we left the leavener out all together. Finally, a low oven may take a little longer, but it produces a golden-brown crust and a moist, tender interior...."