Cold brewed this overnight using 2 tsp leaf for ~450 ml water.
Wow, these gunpowder leaves expanded a lot. The spearmint aroma is assertive yet smooth, both in the dry leaf and liquor, but its flavor is soon followed by an unpleasant and long-lasting sourness, which seems to be made worse by the addition of sugar. I did a second overnight steeping in the fridge which came out more mildly flavored, yet the icky tanginess remained. This is my first time making Moroccan mint tea, so I probably need to learn the right brewing tricks to make it taste right.