Heat oil in a large stockpot. Once it begins to shimmer, add cardamom pods and fry for about 30 seconds.
Add vermicelli. On medium heat, fry vermicelli till it browns slightly, approximately 2 – 2/1/2 minutes.
Lower heat, slowly add milk and then, bring to a boil. Add sugar and stir till it dissolves.
When the milk begins to bubble, lower heat and keep stirring till you get the desired texture, about 15 - 20 minutes. The milk should thicken and seviyan the should retain some bite.
Place in serving bowl and let it cool at room temperature. Top with slivered almonds.