Creamy Boozy Iced Coffee

6 ounces strong brewed coffee
large handful of ice cubes
1 ounce Frangelico
1 ounce half-and-half, or to taste (or cream, milk, flavored coffee creamer, non-dairy milk to keep vegan)
sweetener to taste (sugar, stevia, vanilla stevia, or your favorite sweetener)
whipped topping (or whipped coconut cream to keep vegan), optional for garnishing
pinch dark chocolate shavings, optional for garnishing
squirt of chocolate syrup, optional
Preparation method