Bithias Doro Wat

Name: Bithia's Doro Wat
Ingredients: 1.75 pounds chicken thighs, skin removed; 1.75 pounds chicken drumsticks, skin removed; 0.25 cup grated fresh ginger; 2 tablespoons minced garlic; 4 tablespoons niter kibbeh (spiced clarified butter), divided; 1 cup thinly sliced red onion; 1 (15 ounce) can tomato sauce; 2 tablespoons berbere (Ethiopian spice blend); 1.5 teaspoons fine kosher salt; 1 teaspoon sweet paprika; 0.5 teaspoon cayenne pepper; 0.5 teaspoon ground cardamom; 0.5 teaspoon ground nutmeg; 2 tablespoons finely chopped cilantro leaves and stems; 6 pieces injera (Ethiopian bread)