Brew your coffee and concentrate it in the fridge for about an hour.
Froth the Irish Cream Syrup, the vanilla syrup and the milk in a bowl to a thick velvety foam and put aside.
Pour some ice cubes in a jar/glass and add the chilled Brew to about half of the jar/glass.
Pump an ounce of the vanilla syrup into the iced coffee and stir with a spoon for even combination.
Add a thick layer of the Irish Cream cold foam in the other half of the glass to cover the brew.
Top your drink with some cocoa powder dusting for the look and aroma. Your homemade Irish Cream Cold brew is ready to drink.