Nashville Hot Cauliflower

Name: Nashville Hot Cauliflower
Ingredients: 1 1/2 c. all-purpose flour; 1 1/2 tsp. paprika; 3/4 tsp. freshly ground black pepper; 2 tsp. kosher salt, divided, plus more; 1 large egg; 1 c. buttermilk; 2 tbsp. vinegar-based hot sauce (such as Frank’s RedHot); 1 large head of cauliflower; Vegetable oil, for frying (about 1 1/2 c.); 3 tbsp. cayenne pepper; 1 tbsp. light brown sugar; 1 tsp. garlic powder; 1 tsp. paprika; 1/2 tsp. freshly ground black pepper; 1/2 c. dill pickle chips; 8 slices white sandwich bread