Combine all the ingredients in a medium saucepan over medium heat. Whisk until smooth. 把所有的材料在合适容器中混合并小火加热,急速搅拌直到混合物顺滑。
When mixers come to a boil, reduce heat and simmer for twenty minutes, stirring often. 当混合物快要煮沸时关小火煨20分钟,不断搅拌。
Remove pan from heat and cover until cool.Chill it and store in a covered container. 关火,盖上盖子冷却,并在密封容器中储存。