Cake: 1 box Yellow cake mix, 1 box vanilla pudding, 1/2c canola oil, 1c water, 4 eggs, 1tsp vanilla extract; Cake: Bake cake according to box instructions adding vanilla pudding to the wet mix before baking. Let cake cool.
Icing: 2c brown sugar, 1c milk or cream, 3 Tbs salted butter, 1tsp vanilla extract Icing: Stir brown sugar and milk/cream together in cooking pot until dissolved. Heat on medium heat until boiling. Allow to boil approx. 10 minutes. Test readiness by spooning a small amount of liquid into cup of water. If the liquid turns into a soft ball then it is ready. Remove from heat when ready and allow to cool while stirring. (approx 5 min.) Transfer to microwave safe bowl in case you need to reheat. Add butter and vanilla extract and stir until thick. Ice cake. If icing becomes too thick while applying to the cake, reheat or add cream.