You can top smooth cold brew with a thick, purple-tinted horchata foam made from rice milk, cinnamon, vanilla, and a drop of ube extract. It floats, it swirls, and each sip pulls sweet cinnamon spice into rich, bitter coffee. This is the prettiest caffeine hit you'll ever make at home.
Pour cold brew coffee into 4 large glasses, filling each about ¾ full. Use a medium-dark roast for Taco Bell's signature depth — bold flavor is key.
Prepare the purple horchata foam: In a chilled mixing bowl, combine rice milk, heavy cream, sweetened condensed milk, ube extract, ground cinnamon, vanilla extract, and salt.
Whip the mixture with a hand mixer for 1-2 minutes on high until thick, creamy, and frothy — look for soft peaks that hold their shape. (Copycat tip: Heavy cream and condensed milk mimic Taco Bell’s plush foam texture with rice milk for authentic horchata flavor.)
Gently spoon purple horchata foam onto the cold brew, letting it float atop the coffee. Aim for at least ¾-inch thick foam — Taco Bell's layering philosophy at work.
Add ice cubes to each glass and serve immediately. For full visual effect, swirl the foam gently with a straw to create purple streaks through the cold brew.
Taste and adjust sweetness if needed; add a sprinkle of cinnamon atop the foam for extra Taco Bell-style spice layering.