Preheat oven to 150 degrees Celsius.

Lightly dust calamari with flour, shaking off any excess.

Dip the floured calamari into a mixture of egg and milk.

Combine breadcrumbs, sea salt, and peppers in a shallow bowl.

Coat calamari thoroughly in the breadcrumb mixture.

Transfer the coated calamari to a plate.

Place the plate of calamari in the refrigerator for 20 minutes.

Heat vegetable oil in a saucepan.

Deep-fry calamari in batches until golden brown and crispy.

Drain the fried calamari on paper towels to remove excess oil.

Serve immediately with sweet chili sauce.