Roll dough into 9-inch square on floured surface. Place slices of pepperoni evenly on dough. Sprinkle with remaining ingredients. Roll up tightly, pinch edge and ends of dough to seal well. Fold ends under loaf. Place loaf, seam side down, on greased cookie sheet. Let rise in warm place about 25 minutes or until double. Brush loaf with soft butter. Sprinkle with garlic powder.
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