Blend the base: Add the almond milk, heavy cream, sweetener, cocoa powder, espresso powder, vanilla, almond extract, salt, and oil (if using) to a blender.
Blend until smooth: Start on low, then increase to medium-high for 20–30 seconds. Make sure the cocoa and sweetener are fully dissolved and the mixture looks uniform.
Add the whiskey: Pour in 2 oz of Irish whiskey and blend for 5–10 seconds.
Taste and add up to 1 more ounce if you prefer a stronger finish.
Adjust sweetness and texture: If you want it sweeter, add 1 teaspoon of sweetener at a time and blend briefly. If it’s too thick, splash in a little more almond milk.
Chill: Transfer to a clean glass bottle or jar. Refrigerate for at least 2 hours to let the flavors meld and the texture thicken slightly.
Serve: Shake well before pouring.
Enjoy over ice, swirl into coffee, or drizzle over a keto dessert.