1.   It gave the biscuit an extra sheen and a crisp exterior.

2.   Setting aside the yeast batter overnight creates a waffle that has a crisp exterior and an incredibly tender interior.

3.   The technique, a favorite of chefs, helps keep fish succulent but provides a crisp exterior.

4.   When it comes to cooking a burger, grilling over a hot fire is the ideal way to get a crisp exterior and moist, juicy interior.