Pour the milk into a small saucepan and place it over medium-low heat. Warm gently until tiny bubbles form at the edges and it releases a fragrant smell of spices, about 3-4 minutes.
Add the ground ginger, cinnamon, and molasses to the warm milk. Whisk continuously to dissolve all the spices and sweeteners completely, creating a smooth, fragrant mixture.
Once the mixture is steaming and well combined, remove the saucepan from the heat and give it a quick stir to ensure everything is integrated.
Pour the hot, spiced milk into mugs, then whisk in the honey until fully dissolved. Taste and adjust the sweetness if desired.
If you prefer a smoother sip, strain the latte through a fine mesh sieve into the mugs to remove any spice bits or foam.
Serve immediately, garnished with a sprinkle of cinnamon or a cinnamon stick if desired, and enjoy the warm, spicy aroma and creamy texture.