This pasta just screams spring! You'll get a dose of veggies with peas and asparagus, and also decadent richness with the cream, Parm and egg on top. I mean, what's better than an egg to pull it all together?
Cook pasta in boiling salted water until tender. Drain and reserve ½ cup of the cooking liquid. Return pasta to pot.
Cook pancetta in a large nonstick skillet over medium heat until it is crispy and rendered, about 5-7 minutes. Then transfer to a papertowl–lined plate to drain. Leave 1 tablespoon of drippings in pan. Add asparagus to that same skillet and sauté for 3-4 minutes. Add peas, spring onions, garlic and sauté until vegetables are tender.
To the same pan add ¼ cup of pasta water, cream, 1 cup of parmesan, olive oil, lemon zest and basil. Stir to incorporate. Add pancetta and pasta to pan and toss, adding more pasta water if needed. Season with salt and lots of freshly ground pepper.
Poach the egg.
Heat water in a deep 2 quart pot. Add 1 teaspoon of salt and 2 teaspoons of white vinegar and bring to simmer – NOT a boil. Crack 1 very cold egg into small cup or ramekin. Stir the water until it is spinning around and carefully add egg into center of water. Turn off heat, cover pan for 5 minutes. Remove egg and serve immediately or move egg to ice bath and reheat with warm water before serving.
Transfer pasta to bowl. Sprinkle remaining herbs, and top with poached egg.