Step three: Make the sweet hot pepper sauce
In a bowl, combine the sugar, 1⁄2 cup water, the vinegar, cucumber, shallot, and chile. Season to taste with salt.
Step four: Cook the chicken
Heat a grill or grill pan over medium-high heat until hot. Remove the chicken tenders from their marinade, letting the excess drop back into the bowl. Thread each chicken tender on a skewer and grill until cooked through but still juicy, 2 to 3 minutes per side.
Serve the chicken with the satay sauce and sweet hot pepper sauce.