Grate peel from limes, chop finely and place in a bowl. Squeeze ½ cup lime juice and combine with lime peel, chopped jalapeños, sugar, chilli powder, oil and salt

Place salmon and marinade into a large resealable plastic bag. Marinade for a minimum of 1 hour, preferably 4 or more hours.

Place the salmon, skin side down, on the BBQ over medium heat and cook for about 8-10 minutes or until the salmon is done.

While salmon is grilling, pour remaining marinade into saucepan. Add butter and reduce to half.

Pour reduced marinade on salmon and serve with grilled fresh vegetables.