Buttered Peas With Onion

Directions

1. 1
   Bring water, onion, and 1/2 teaspoon salt to a boil in a heavy medium saucepan, then cook over medium heat, covered, stirring occasionally, until onion is tender, about 5 minutes.
2. 2
   Increase heat to medium-high and stir in butter and peas, then cook, covered, stirring occasionally, until peas are tender, about 8 minutes. Season with salt.