Very firm ginger cake or gingerbread recipe?

searching for a recipe for a very firm ginger cake...so firm that you have to saw a piece off and then let that yummy morsel melt in your mouth. can anyone help?Very firm ginger cake or gingerbread recipe?
1/2 c. butter


1 c. sugar


1 egg, beaten


1 c. molasses


2 1/2 c. flour


1 1/2 tsp. soda


1/2 tsp. salt


1 tsp. cinnamon


2 tsp. ginger


1 c. hot water





Bake cake at 350 degrees. Bake cake and let cool. Slice desired amounts and cover with Gingerbread Glaze.





GINGERBREAD GLAZE:





6 tbsp. butter


1 c. sugar


3 tbsp. flour


1 1/2 c. hot water





Mix and let cool a little then add 3 egg yolks. Cook above mixture until nearly thick.





Add slowly:





3 tsp. vanilla


1/4 tsp. salt