Add the water and sugar into a heavy bottom saucepan. Bring to a boil over medium-high heat. Stir until the sugar is dissolved.
Add the dried lavender buds, stir, and simmer for 2 minutes. Remove from the heat and steep the dried lavender for 10 minutes.
Strain the lavender buds (strain as many times as needed until no bits remain). Pour the mixture into a glass jar and refrigerate for up to 2 months.
Matcha
For accurate measurements, place a bowl or chawan onto a digital scale. Use a fine mesh strainer and sift the matcha powder. Add 1 tablespoon of hot water and mix using a bamboo whisk or flat whisk to make a paste.
Add the rest of the hot water and whisk by making a "M" or "W" shape with your wrist. You can use a hand frother if you don't have a bamboo whisk. Fill a glass (10-12 ounces works best depending on how much ice you enjoy), with ice and add your milk of choice. Pour the matcha over the milk. Set aside.
Lavender Cold Foam
In a tall glass, add the lavender syrup, milk of choice, and optional drops of natural food dye to make it purple (and pretty!). Use a handheld frother and froth for 20-30 seconds until it doubles in volume and looks thicker and frothy. Skim milk or oat milk work the best. If you don't have a frother, add the ingredients into a glass jar and seal tightly. Shake the jar for about a minute until foamy.