Curried peanut chicken and date stew

Name: Curried peanut chicken and date stew
Ingredients: 1.25-1.5 pounds boneless chicken thighs; 2 tablespoons oil; 1 tablespoon minced or crushed garlic; 2 teaspoons grated ginger root; 3/4 cup chopped onion; 1/2 cup chopped green bell pepper; 1 cup pitted medium dates, halved; 14 1/2 ounces can of diced tomatoes; 1 cup hot, prepared chicken broth (or hot water and 1 bouillon cube); 1/4 cup natural peanut butter (smooth or chunky); 2 teaspoons Sriracha sauce (or more for more spice); 1 teaspoon garam masala (or substitute--see below); 1 tablespoon soy sauce; 2-3 tablespoons chopped cilantro; Salt and pepper to taste