[From Cooking for Profit: Catering and Food Service Management, by Alice Bradley (1925) p.96-97]
2 squares chocolate, over hot water, add
½ cup butter, stir until butter melts and set aside.
3 eggs, adding gradually
1 cup sugar. Sift together
¾ cup bread flour with
½ teaspoon baking powder and
½ teaspoon salt. Add to eggs with
1 cup chopped walnuts and
1 teaspoon vanilla, then add chocolate mixture. Spread in shallow
10x15 pans, bake 15 to 20 minutes in a moderate oven or at 350
degrees F., and cut in squares while warm. This recipe should
make 4 dozen fudge squares.
[notes: Use small or medium eggs.
When I tried this, it just barely filled an 8"x12" pan, making about 20 one-half-inch-thick brownies.]