Melt over hot (not boiling) water 1 (6 oz.) package (1 cup) semi-sweet chocolate chips. Remove from water. Add 1/4 cup butter, stir until melted. Let cool 10 minutes. Gradually blend in 1/2 cup sugar. Beat in 1 egg. Sift together and stir in 1 cup sifted flour, 1/2 teaspoon salt, 1/2 teaspoon baking powder. Press dough through desired disk of cookie press onto ungreased cookie sheet. Bake 6 to 8 minutes at 350 degrees. Makes 6 dozen.