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1
To make the dough, stir the flour, yeast, brown sugar, and salt together in a bowl.
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2
Make a well in the center and add the water and oil.
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3
Stir to make a soft dough, adding more water if needed.
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4
Knead on a floured work surface for about 8 minutes, until smooth and elastic.
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5
Shape into a ball.
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6
Place in an oiled bowl and turn to coat with oil.
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7
Cover with plastic wrap and let stand in a warm place for about 1 hour, until doubled.
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8
For the topping, heat the oil in a large, heavy-bottomed casserole over low heat.
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9
Add the onions, garlic, herbs, thyme, and bay leaf.
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10
Cover and cook, stirring occasionally, adding a little water if the onions begin to stick, for about 45 minutes, until very tender.
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11
Drain in a sieve, discarding the thyme and bay leaf.
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12
Let cool.
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13
Preheat the oven to 350F (180C).
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14
Lightly oil a 13 x 9in (33 x 23cm) rimmed baking sheet.
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15
Knead the dough briefly on a floured work surface.
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16
Roll into a rectangle to fit the baking sheet, and transfer to the pan.
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17
Prick all over with a fork.
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18
Spread the onions over the dough.
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19
Drain the anchovies, reserving 3 tbsp oil.
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20
Arrange the anchovy fillets in a crisscross pattern over the onions, and garnish with the olives.
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21
Drizzle with the reserved anchovy oil, and sprinkle with pepper.
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22
Bake for about 25 minutes, until the crust is brown.
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23
Let cool slightly.
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24
Cut into serving pieces and serve warm, or cool completely.