Clean, bone, stuff, and truss a bird, then steam over body bones or roast. If roasted, do not dredge with flour. Put a pan in ice water, cover bottom with aspic jelly mixture, and when firm garnish with truffles and egg custard thinly sliced and cut in fancy shapes. The smaller the shapes the more elaborate may be the designs. When garnishing with small shapes, pieces are so difficult to handle that they should be taken on the pointed end of a larding-needle, and placed as desired on jelly. Add aspic mixture by spoonfuls, that designs may not be disturbed. When mixture is added, and firm to the depth of three-fourths inch, place in the bird, breast down. If sides of mould are to be decorated, dip pieces in jelly and they will cling to pan. Add remaining mixture gradually as in Tomatoes in Aspic. Small birds, chicken, or turkey, may be put in aspic.