In a saucepan combine both the milk & bring it boil on medium flame. Whisk it throughly.

Keep stirring. Add the china grass mix & whisk again to avoid lumps. Simmer for 3-4 minutes. Remove from heat & transfer in moulds/ramekins. Let it cool down & then transfer in refrigerator.

For orange sauce- mix orange juice & sugar in a saucepan. Simmer the juice over medium heat stirring occasionally for abt 5-6 minutes. Add the cornstarch mix & stir vigorously. Remove from heat. Cool it down. Serve with demoulded Panna Cotta.