Place coffee grounds and water into the Thermomix bowl. Mix 6 sec/speed 6. Cook 15 min/100°C/speed 1.
Strain using a nut milk bag, discard grounds (the garden loves it!). Return strained coffee to the Thermomix bowl.
Add all remaining ingredients and mix 6 sec/speed 6. Cook 10 min/100°C/speed 1.
Pour into a jar and let cool.
Use as you would any concentrate syrup. Fantastic on ice cream, pancakes, waffles, with ice, iced milk, ice cream, etc.