Hello, 1.Sift cake flour+baking power+milk power + vanilla power+salt set aside. Add cold water+ egg in a jar. In a mixing bowl add room temperature butter+ shortening + sugar+ EC25K altogether. 2.Beat the butter mixture about 4 minutes at high speed until the butter become light yellow and all ingredients mix well. Use spatula to mix the mixture again. 3.Change beater to whisk and add in all ingredients in the bowl. Starting from eggs to flour. Mix about 4 minute at medium speed. 4.After 2minutes stop the machine, use spatular to mix the mixture in the bowl. Continue mixing 2 minutes. 5.After finished mixing, bake cupcakes at temperature of 180celcius about 30-40 minutes. Hope you enjoy the baking