Preparation Cook leeks in butter in a 12-inch heavy skillet over moderately low heat, stirring, until tender, about 5 minutes. Add broth, cream, and water and simmer, uncovered, about 5 minutes. Stir shelled peas into sauce and simmer 3 minutes. 3Stir in snow peas, salt, and pepper and simmer until peas are tender, about 5 minutes. Cook pasta in a 6- to 8-quart pot of boiling salted water. Drain pasta, then add to sauce, tossing to combine. Sprinkle parsley, zest, and parmesan on top and toss again. Season with pepper. Cooks' note:You can substitute 1 (10-oz) package frozen peas (not thawed) for shelled fresh peas. Add to sauce with snow peas.
Preparation Cook leeks in butter in a 12-inch heavy skillet over moderately low heat, stirring, until tender, about 5 minutes. Add broth, cream, and water and simmer, uncovered, about 5 minutes. Stir shelled peas into sauce and simmer 3 minutes. 3Stir in snow peas, salt, and pepper and simmer until peas are tender, about 5 minutes. Cook pasta in a 6- to 8-quart pot of boiling salted water. Drain pasta, then add to sauce, tossing to combine. Sprinkle parsley, zest, and parmesan on top and toss again. Season with pepper. Cooks' note:You can substitute 1 (10-oz) package frozen peas (not thawed) for shelled fresh peas. Add to sauce with snow peas.