Take out your mason jar, and turn it so the measurement side is facing you.
Pour in your creamer base to the 2 cup or 16 ounce line making sure to use the measurements on the side of the quart jar.
Next, add your syrup to the 2.5 cup line or the 20 ounce line. This line may not be marked with a number, but should be half-way between the 2 and 3 cup lines.
Finally, add the can of condensed milk. Stir carefully with a wooden spoon or spatula making sure to get everything evenly combined.
Store in the mason jar with a lid in the fridge. To use, add a small amount to your morning cup of coffee (1-3 tbsp. to suit your tastes).