Preheat your oven to 350 degrees and grease an 8x8 baking dish, stoneware works great for this

In a large bowl, beat the eggs and add the basil, salt and pepper, set aside

In a medium sized skillet heat the butter and olive oil and then sautee the scallions briefly

Allow the scallions to cool and then add the butter, olive oil and scallions to the egg mixture

Pour the mixture into your baking dish and cover with foil

Bake in the oven 30-35 minutes, removing the foil for the final 5 minutes

It should puff up and get slightly golden brown on top when done

Let cool and serve