Spicy Thai Red Beef Curry

Name: Spicy Thai Red Beef Curry
Ingredients: 2 tablespoons roughly chopped fresh cilantro leaves and stems; 2 tablespoons neutral oil, such as canola; 1 tablespoon grated fresh ginger; 1 tablespoon roughly chopped lemongrass (from root end); 1 teaspoon ground coriander; 1 teaspoon ground cumin; 1/2 teaspoon shrimp paste; 10 cloves garlic; 8 medium red chiles, such as Fresno; 4 small shallots, halved; 1 Sri Lankan (kaffir) lime leaf, torn into pieces(see Cook's Note); Kosher saltand freshly ground black pepper; 4 tablespoons canola oil; 2 pounds flank steak, thinly sliced against the grain; Kosher salt; 1 yellow onion, thinly sliced into strips; 1 green bell pepper, sliced into strips; 1 red bell pepper, sliced into strips; Two 14-ounce cans coconut milk; 1 cup low-sodium chicken broth; 2 tablespoons fish sauce; 3 tablespoons roughly choppedfresh cilantro; 2 tablespoons roughly choppedfresh Thai basil; 1 tablespoon roughly chopped fresh mint; Juice of 2 limes