Combine Ingredients: Preheat oven to 425 degrees or air fryer to 380 degrees. Add all of the meatball ingredients to a large bowl. Mix together by hand or with a spatula until everything is well incorporated.
1 lb. ground chicken, ½ cup bread crumbs, 1 large egg, ¼ cup Thai basil, ¼ cup cilantro, 1 ½ Tbsp. soy sauce, ½ Tbsp. fish sauce, 2-3 cloves garlic, 1 tsp. ginger paste, ½ jalapeno, ½ tsp. lemongrass paste, ½ lime, ½ tsp. salt
Measure Meatballs: Scoop out 2 tablespoons of mixture and roll into a bowl. (Spray a bit of non-stick cooking spray on your hands or a drizzle of oil if you’re having trouble with the mixture sticking.) Repeat with the remaining meat mixture until you have 20 meatballs.
Bake in Oven: Place the meatballs in a single layer on a parchment paper-lined baking sheet or in an air fryer basket. Make sure none of the edges are touching. Bake in the oven for 15 minutes, flipping the meatballs over halfway through. Or cook in the air fryer for 8-10 minutes, flipping the meatballs over halfway through cooking.
Make the Teriyaki Glaze: While the meatballs are cooking, add all of the Teriyaki Glaze ingredients, except for the starch and ¼ cup of water, to a medium-sized saucepan over high heat. Bring sauce to a boil and then reduce heat to low. Simmer for 1-2 minutes or until sugar begins to dissolve. Make a starch slurry by whisking together starch and water in a small bowl until smooth. Add starch slurry to the saucepan. Whisk sauce for 1-2 minutes over low heat until it is thickened to your desired consistency. (Sauce will thicken even more once it cools.)
¼ cup soy sauce, 2 Tbsp. brown sugar, 1 Tbsp. rice vinegar, 1 tsp. sesame oil, 1 tsp. chili garlic sauce, ¼ cup water, 1 Tbsp. cornstarch
Brush meatballs with glaze on all sides and return to the oven for another 3-5 minutes, or the air fryer for 2-3 minutes, or until the internal temperature reaches 165 degrees.
Serve the meatballs with additional chopped cilantro, lime wedges, and chopped peanuts.