Shrimp and Grits With Fennel Potlikker

Name: Shrimp and Grits With Fennel Potlikker
Ingredients: 2½ cups (or more) Fennel Potlikker, divided; 1 cup stone-ground or regular yellow grits, rinsed, drained; 1 bay leaf; 3 tsp. Diamond Crystal or 1½ tsp.Morton kosher salt, divided, plus more; 2 tsp. freshly ground black pepper, divided, plus more; 1 lb. large shrimp, peeled, deveined, tails on; 3 Tbsp. extra-virgin olive oil; 1 cup finely chopped fennel stems; 2 garlic cloves, thinly sliced; 1 tsp. crushed red pepper flakes; 2 plum tomatoes, cored, finely chopped; 3 Tbsp. coarsely chopped fennel fronds