The night before also make your cold brew coffee by coarsely grinding dark roast coffee beans. Add to a mixing bowl and cover with filtered water, then cover with plastic wrap and set in the refrigerator to brew.
Pulse/mix on low until small bits remain, then stream in hot water while the blender is on until a paste is made. You will need to scrape down the sides and encourage it along periodically. Only add enough water to form a paste - too much and it will be too liquidy. Set aside.
To make 2 frappuccinos, (amounts as original recipe is written // adjust if altering batch size) add all 16 ice cubes and 2 cups (480 ml) cold brew coffee to a blender and blend on high until puréed and smooth (see photo).
*Nutrition information is a rough estimate calculated without coconut whipped cream.
*Prep time reflects time for freezing ice cubes and preparing cold brew coffee.
*Inspired by / adapted from my 3-ingredient Cold Brew Mocha Frappe.