FENNEL SEED FOCACCIA WITH KALAMATA OLIVES

Steps:

• Make starter:
• Mix flour and yeast in 8- to 10-cup bowl. Using wooden spoon, stir in 3/4 cup water; beat until smooth soft dough forms, about 3 minutes. Scrape down sides of bowl. Cover with plastic; let stand 30 minutes. Chill overnight. Let stand at room temperature 30 minutes before continuing.
• Make dough:
• Stir 1/4 cup warm water and yeast in large bowl. Let stand 5 minutes. Add starter and 1 cup plus 2 tablespoons cool water. Using wooden spoon, mix starter and water 1 minute (mixture will look milky and foamy). Mix in 1 1/2 tablespoons oil, 4 teaspoons salt, milk and fennel. Add 3 1/3 cups bread flour, about 1 cup at a time, mixing until very soft sticky dough forms.
• Knead dough gently on floured surface until dough comes together but is still sticky, sprinkling with more flour and loosening dough from surface with pastry scraper, about 5 minutes. Return to same bowl. Cover with plastic; let rest until firmer and less sticky, about 20 minutes.
• Knead dough gently on floured surface until supple and elastic, sprinkling with flour to prevent sticking, about 5 minutes. Push dough out to 12-inch square. Sprinkle with 2/3 cup chopped olives; fold dough over olives. Knead gently to distribute olives; shape into ball.
• Oil large bowl with 1/2 tablespoon oil. Add dough; turn to coat. Cover with plastic wrap. Let dough rise until almost doubled in volume, about 1 hour. Uncover; fold dough edges in toward center. Turn dough over, releasing some air but deflating as little as possible. Cover; let rise until almost doubled, about 1 hour.
• Position rack in bottom third of oven; preheat to 425°F. Oil 17x11-inch baking sheet and line with parchment paper. Turn out dough onto pan. Without deflating dough, gently stretch and push dough to cover pan. If dough springs back, let rest 5 minutes, then stretch. Repeat resting and stretching until dough stays in place. Press quartered olives over surface. Indent dough with fingertips in several places. Let rise until puffy, about 20 minutes.
• Sprinkle dough with 1 teaspoon salt. Place pan in oven. Spray oven with water 8 times. Close door 1 minute. Open and spray several times more. Close door; bake focaccia 15 minutes. Reduce oven temperature to 350°F. Bake focaccia until golden and crusty, about 12 minutes longer. Cool focaccia on rack 30 minutes.