To make the rose mixture:
1. Bring the water to a boil in a medium pot.
2. Remove from heat, add rose petals, and stir well to submerge. Steep for 5 minutes, stirring 2 to 3 times.
3. Meanwhile, mix pomegranate powder with hot water and whisk until dissolved. Strain petals.
4. While the water is still hot, mix in the pomegranate liquid and the rose water. Let cool before using.
To make the latte:
1. In a small saucepan, combine 6 ounces rose mixture, 2 ounces milk, and honey to taste.
2. Heat over medium heat until steaming hot (but not boiling), stirring frequently.
3. Remove from heat and blend with an immersion blender until frothy.
4. Pour into a cup and dust with a little cocoa powder.