You can marinate the chicken for as little as 4 hours, but you will get more flavour with a 24 hour marinade.
If using wooden skewers, you can assemble the skewers and marinate the whole thing over night in the fridge.
If using metal skewers, marinate the ingredients without the skewers. Then skewer just before cooking .
Grilled Chicken & Grape Skewers
12 wooden skewers or 12 metal skewers
1/4 cup oil
2 cloves garlic, minced
1/2 teaspoon Chili flakes
1 Tablespoon fresh oregano leaves, finely minced
1 Tablespoon fresh rosemary, finely minced
1 teaspoon lemon zest
2 chicken breasts, cut into 1″ cubes
2 cups red or green seedless grapes
1 red pepper, cut into 2″ cubes
1/2 red onion, cut in half lengthwise , layers separated
salt & freshly ground pepper to taste
2 Tablespoons olive oil
1 Tablespoon fresh lemon juice
Combine first 6 ingredients in a non-reactive medium size bowl and mix well. Add chicken and toss to combine. Cover with plastic wrap and marinate over night, or at least 4 hours.
Thread skewers alternating chicken, with grapes, red peppers and onion until all ingredients have been used. you should end up with about 12 skewers.
Season with salt and pepper.
Grill turning occasionally until chicken is cooked thru about 5 – 8 minutes.
Arrange on serving platter and drizzle with olive oil and lemon juice.