The first time I made these, I got a little carried away and accidentally made giant doughnut eggs the size of my face. I used a 3" cutter, and they were fun for novelty value, but NOT the look I was going for. So here’s a little tip from hard-won experience. The doughnuts will rise after you cut them, and they’ll puff up even more once they’re fried. So unless you want ridiculous ostrich-sized doughnut eggs, stick with a cutter that’s about 2-inches long. I definitely wouldn't go any bigger than 2.5-inches. The eggs will look teensy, but they’ll be the perfect 4-bite doughnuts that will make people feel okay about eating 2, 3, or 4 of them in a row.