I bring the water to a boil in a small saucepan, then stir in the granulated sugar and brown sugar until they dissolve completely. Next, I add the ground cinnamon and vanilla extract, then reduce the heat and let it simmer gently for about 8 to 10 minutes. The mixture should thicken slightly into a syrup-like consistency you can pour easily.
Once the syrup has thickened, I take it off the heat and let it cool for a few minutes on the counter. I pour it into a clean mason jar using a funnel to keep things tidy. This cinnamon dolce syrup recipe keeps well in the fridge, so I always make a full batch to use across the week.
While the syrup cools, I brew two shots of espresso using my machine, though strong brewed coffee works in a pinch too. If you're using a cinnamon dolce latte Nespresso recipe approach, two espresso capsules give you the closest match to the Starbucks-style intensity. I pour the hot espresso straight into my favorite mug.
I spoon 2 to 3 tablespoons of the warm cinnamon dolce syrup directly into the espresso and stir well. This step is where all that cozy cinnamon and brown sugar flavor gets absorbed into the coffee itself. Taste it here and adjust the syrup amount if you want it sweeter or lighter.
I heat my milk gently, either on the stovetop or in the microwave, then froth it using a handheld frother until it's light and foamy. I pour the frothed milk over the espresso and syrup mixture, holding back the foam with a spoon until the end. This is the step that turns your coffee into a true latte.
Finally, I spoon the reserved foam on top, add a dollop of whipped cream if I'm feeling extra indulgent, and finish with a light dusting of ground cinnamon. Serve it immediately while it's warm and fragrant. This is the moment that makes the whole process worth it.