Hyphens plan the roll size.

Draw the roundish lower part.

Now distribute 4 dredging and draw the top part of a long loaf.

Connect curves. Draw cuts on a long loaf.

Light tone make shading of a bottom, area of dredging (cuts) — shading curls.

More dark tone make shading of top of a long loaf, where a zazharisty crust.

Make shading even more, considering transitions of tones. make a shadow under a roll.

Now shade, a rubber can add patches of light as we did in a lesson about a flower, a tulip or a rose.