Mix eggs, sugar, oil & ... hour at 300°F. Icing: Mix in saucepan 15 minutes before cake is done. Mix until thick, stirring constantly. Use an ice pick to poke small holes ... over and into cake.
Cream sugar and butter together. ... marshmallows and put back in oven 5 minutes to melt. Mix and spread on cooled cake over the top of the marshmallows.