My Grandmother, Lillie Carbeau Blanchard, brought this recipe to our family from her Louisiana home in 1957. It was an instant favorite and in demand for birthdays each year. It has been a tradition in our home and I hope you enjoy it as much as we have. When I make the icing, I blend the flour into the milk with the mixer first, then I cook it on a medium heat to begin with, constantly stirring to avoid lumps, increasing the heat along the way. Make sure you stir the sides and bottom of the pan. Let the stiff mixture cool to room temperature before you blend in the sugar, butter and vanilla. I double the icing recipe. as it is not too sweet and our family loves it! Also - I cool the layers in the refrigerator overnight then I spilt the layers, making this more like a "torte" than a regular cake.