Wash and chop shombo and scotch bonnet, crush garlic cloves.
Mix cornflour with 2 tablespoons water, set aside.
In a small pot, put water, vinegar, sugar, garlic, salt, shombo and scotch bonnet.
Place over medium heat and bring to a boil then reduce heat to a simmer.
Simmer for 5 minutes, pepper will slightly soften and sugar dissolved into a syrup.
Stir cornflour mixture to recombine, add to the sauce stirring all the time.
Cook until thickened and everything is suspended, about 1 minute.
Cool and store in an airtight container or use.