In a high powered blender, puree the sweetened condensed milk, white rice, almond milk, and vanilla on high for 3-4 Minutes. The longer you blend, the smoother the final product will be. Pour over a fine mesh strainer to eliminate any leftover solids.
On a small plate, combine the cinnamon and sugar. Dip the rim of a heatproof glass in water and then in the cinnamon sugar mixture to make a rim.
Place under the coffee dispenser. Brew a 2-ounce espresso.
Top with ice and fill with ¾ of the horchata. Garnish with cinnamon. Enjoy!