1Mix all the ingredients for the cake mix, add coconut extract and coconut.
Pour in a sheet cake pan greased or sprayed. Or for a thicker cake use a 9x13 cake pan. Put in a preheated 350 degree oven. Bake until tooth pick inserted comes out clean. Remove from oven and poke holes in it with a wooden spoon handle. Set aside.
2Mix the sugar and corn starch together so it won't clump in the pot.
3Mix all the ingredients except the coconut extract and coconut in a medium sauce pan, stir continuously until sauce becomes thickened, if it costs the back of the spoon it's thickened. Add extract. Remove from heat and pour over the holey cake covering it. Then sprinkle coconut on top. Let cool, then cover and chill before serving.