Chilled Chrysanthemum and Goji Jelly

Steep 20 g of chrysanthemum flowers in 400 g of hot water for 10 minutes, then strain the liquid.

Combine the chrysanthemum infusion with the remaining 400 g of water and 80 g of rock sugar in a pot.

Whisk in 10 g of agar-agar powder until fully dissolved over medium heat.