Creamy Artichoke Dip

From : http://www.marthastewart.com/344979/creamy-artichoke-dip?czone=entertaining/holiday-entertaining/holidaycenter-foods&center=276958&gallery=274712&slide=344861

INGREDIENTS

4 slices day-old crusty white bread with crusts removed, torn into 2-inch pieces (3 cups)
2 anchovy fillets, drained
1 box (9 ounces) frozen artichoke hearts, thawed and drained
1/2 teaspoon sugar
2/3 cup extra-virgin olive oil, plus more for serving
3 tablespoons fresh lemon juice
Coarse salt and ground pepper
Chopped fresh chives, for serving
DIRECTIONS

STEP 1
In a medium bowl, pour 1 cup water over bread. Immediately squeeze as much water as possible from bread and transfer to a food processor along with anchovies, artichokes, and sugar. Process until a paste forms. With machine running, slowly add oil, scraping down bowl as needed. With machine still running, add lemon juice, 1 tablespoon at a time, until mixture is creamy. Season to taste with salt and pepper and transfer to a serving dish. To serve, top with chives and a drizzle of oil.