01 - Place flour in one shallow bowl, beaten eggs in a second, and combine panko breadcrumbs, regular breadcrumbs, garlic powder, smoked paprika, salt, and black pepper in a third bowl.
02 - Dredge each mozzarella cube first in flour, shaking off excess, then dip in beaten egg, and coat thoroughly in the seasoned breadcrumb mixture. For extra crunch, repeat the egg and breadcrumb steps for a double coating.
03 - Arrange the coated cubes on a parchment-lined tray and freeze for 15 minutes to firm them up so the coating adheres during frying.
04 - Pour about 2 inches of vegetable oil into a deep pot and heat to 350°F over medium-high heat.
05 - Fry the chilled mozzarella poppers in batches for 2 to 3 minutes, turning occasionally, until golden brown and crispy. Remove with a slotted spoon and drain on paper towels.
06 - In a small saucepan over medium heat, melt the butter. Add maple syrup, cayenne pepper if using, and a pinch of salt. Simmer for 2 to 3 minutes until slightly thickened.
07 - Arrange the poppers on a serving plate and drizzle generously with the warm maple glaze just before serving for maximum crunch.