Marinate the chicken: Add all of the chicken marinade ingredients to a medium bowl and whisk together to combine. Add all of the chicken thigh pieces to the marinade, toss to fully coat and let sit for 15-30 minutes.
Add the bell pepper pieces to a bowl with 1 tbsp olive oil and 1 tsp salt and toss to combine. Set aside.
For the hummus
While the chicken marinates, make the hummus.
Save 3 tbsp of the aquafaba (liquid the chickpeas are stored in) and set aside.
Then, rinse and drain the chickpeas and add them to the food processor. Add the tahini, garlic cloves, lemon juice, salt, pepper and olive oil.
Blend on high until almost completely smooth. Scrape the sides down as needed.
Next, slowly stream in the cold water and aquafaba and then add in the ice cubes. Blend on high until very smooth.
Transfer the hummus to a serving dish and use a spoon to spread around evenly. Set aside.
Grill the chicken
Thread the marinated chicken onto the skewers, dividing evenly between the skewers.
Heat the grill to medium-high heat, about 400F.
Oil the grill well and when heated, place the skewers on the grill and cook, turning occasionally, for about 10-15 minutes or until cooked through (internal temperature reached 165F) and well browned. At the same time the skewers are cooking, cook the pieces of bell pepper.
Remove from the grill and let rest for 5 minutes.
Assemble
Arrange the chicken skewers on top of the hummus along with the grilled pepper pieces. Garnish with lemon wedges, fresh basil leaves and fresh mint leaves. Serve with pita for dipping and enjoy with friends!