Slide skillet under broiler and broil until frittata has risen and surface is puffed and spotty brown, 1 1/2 to 2 minutes; when cut into with paring knife, eggs should be slightly wet and runny. Remove skillet from oven and let stand 5 ...
Source: http://workingwifedinners.blogspot.com/2008/06/bacon-potato-and-cheddar-frittata.html