Preparation Melt butter in large saucepan over medium heat. Add fennel cubes and fennel seeds; sprinkle with salt and pepper. Sauté until fennel cubes are almost tender, about 5 minutes. Add broth and 1 cup water; bring to boil. Stir in couscous. Remove from heat; cover and let stand until liquid is absorbed, about 10 minutes. Fluff with fork; stir in nuts and chives. Season with salt and pepper.
Preparation Melt butter in large saucepan over medium heat. Add fennel cubes and fennel seeds; sprinkle with salt and pepper. Sauté until fennel cubes are almost tender, about 5 minutes. Add broth and 1 cup water; bring to boil. Stir in couscous. Remove from heat; cover and let stand until liquid is absorbed, about 10 minutes. Fluff with fork; stir in nuts and chives. Season with salt and pepper.