Dairy options
Use full-fat dairy. I’ve had great results with heavy cream, half-and-half and whole milk. Sour cream, crème fraîche and yogurt will work as well. However, two percent and skim milk are too watery. Omitting the dairy altogether results in a frittata that is, unsurprisingly, more eggy in flavor and less creamy.
Testing notes: America’s Test Kitchen recommends just three tablespoons of dairy and Bon Appetit recommends 1/2 cup. I tried both and slightly preferred the America’s Test Kitchen version, so I opted for the lower amount.
Pre-cook your vegetables, and use a lot of them
Vegetables should be tender, seasoned and cooked before adding the eggs. Raw vegetables release too much water and won’t be fully cooked by the time the eggs are done. Pre-cook your vegetables by sautéing, roasting, or steaming them to bring out their best qualities.
A large frittata made with one dozen eggs can accommodate up to three cups cooked vegetables, so that means you’ll need even more than three cups of raw vegetables!
