This section is from the book "Practical Housekeeping", by Estelle Woods Wilcox. Also available from Amazon: The New Practical Housekeeping.
Make "Mrs. Jennison's sponge cake," bake in long pie-tins (two such tins will make twelve dominoes, and if no more are required, the rest of the batter may be baked in a loaf). The batter in the pie-tins should not be more than one-third of an inch deep; spread it evenly, and bake in a quick oven. Have a brown paper nearly twice the size of the cake on the table, and the moment one of the cakes comes from the oven turn it upside down in the center of the paper, spread it with a thin layer of currant jelly, and lay the other cake on it upside down, cut it with a hot, sharp knife lengthwise, directly through the center, then divide it across in six equal parts, push them with the knife about an inch apart, and ice them with ordinary white icing, putting a large dessert-spoonful on every piece; the heat of the cake will soften it, and with a little help the edges and sides will be smoothly covered. All of the icing that runs over on the paper may be carefully taken up and used again. It must then dry, which it will do very quickly. Make a horn of stiff white paper about five inches long, one and a half inches across the top, and one-eighth of an inch at the other end; put in it a dessert-spoon of dark chocolate icing, close the horn at the top, and pressing out the icing from the small opening, draw a line of it across the center of every cake, and then make spots like those on ivory dominoes; keep the horn supplied with icing. - In the Kitchen.
 
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