Preheat the Grill/Oven: If grilling, preheat your grill to medium-high heat. If using an oven, preheat it to 400°F (200°C).
Prepare the Chicken: Thread the chicken cubes onto the soaked bamboo skewers, leaving a small space between each cube to ensure even cooking.
Make the Honey Garlic Sauce: In a small saucepan over medium heat, melt the butter. Add the minced garlic and sauté until fragrant, about 1 minute. Whisk in the honey, apple cider vinegar, soy sauce, and brown sugar, bringing the mixture to a simmer. Dissolve the cornstarch in ¼ cup water and stir into the sauce. Continue cooking until the sauce thickens, about 2-3 minutes. Remove from heat.
Cook the Chicken Skewers:
Grill Method: Place the skewers on the grill and cook for 5-7 minutes on each side, until the chicken is fully cooked and has a slight char on the edges. Brush the honey garlic sauce over the chicken in the last few minutes of cooking.
Oven Method: Arrange the skewers on a baking sheet lined with parchment paper. Bake for 20 minutes, then brush the skewers with the sauce and broil for an additional 2-3 minutes to achieve a nice glaze.
Rest and Serve: Let the skewers rest for a few minutes before serving. Serve with extra honey garlic sauce on the side for dipping.