Combine brown sugar, granulated sugar, water, cinnamon, and salt in a small saucepan.
Bring to a gentle simmer over medium heat, stirring until the sugars dissolve.
Lower the heat and simmer for 3–4 minutes to slightly thicken. If using cinnamon sticks, let them infuse for 10 minutes off heat.
Remove from heat and stir in vanilla. Cool to warm. Strain if you used sticks.
Pull 2 shots of espresso using your machine, or brew very strong coffee with a moka pot, Aeropress, or Nespresso.
Pour espresso into your favorite 12–14 ounce mug.
Warm 3/4 to 1 cup milk to steaming but not boiling (about 150–155°F). Use the steam wand, microwave, or stovetop.
Froth to create a silky microfoam. A handheld frother, French press pump, or jar shake works great.
Stir 2–3 tablespoons syrup into the hot espresso.
Pour in the steamed milk, holding back the foam with a spoon, then spoon the foam on top.
Finish with whipped cream if you like and a cinnamon-sugar sprinkle.
Dial in sweetness: Start with 2 tablespoons syrup, taste, then add more.
Milk matters: Whole milk gives the creamiest body; oat milk (barista blend) froths beautifully and adds natural sweetness.
Texture first: Aim for small, glossy bubbles in the foam—microfoam blends better than big, airy bubbles.
Heat control: Keep milk under 160°F to avoid a scorched taste.