Using a scale or measuring cups, pour ingredients from coffee liqueur to whiskey through a funnel into a bottle. You can start by placing the empty bottle with a funnel in it on the scale and hitting tare/zero. Then pouring each ingredient through the funnel and hitting tare on the scale after each ingredient.
Place the cap on tightly and shake vigorously for two to three minutes until sugar is mostly dissolved.
Using the funnel, add the cream. Gently shake the bottle side to side, being careful to not agitate too much and whip.
Store in the refrigerator until ready to use, typically good for three to four weeks.