Baked Turkey Wings

Name: Baked Turkey Wings
Ingredients: 2 Tbsp. plus 1 tsp. Diamond Crystal or 1 Tbsp. plus 1 tsp. Morton kosher salt, divided, plus more; 2 Tbsp. granulated sugar; 1 Tbsp. baking powder; 1 Tbsp. garlic powder; 1 Tbsp. onion powder; 1 Tbsp. smoked paprika; 3½ tsp. freshly ground pepper, divided, plus more; 4 lb. turkey wings (about 6), tips removed, drumettes and flats separated; 2 large white onions, thinly sliced; 8 garlic cloves, lightly smashed; 2 Tbsp. thyme leaves; 2 Tbsp. plus ⅓ cup extra-virgin olive oil; 1¼ cups low-sodium chicken broth; 2 tsp. Dijon mustard; 1½ tsp. apple cider vinegar; 1 tsp. Worcestershire sauce