Combine warm water & sugar in large bowl. Sprinkle yeast over mixture; let stand until foamy, about 10 minutes.
Stir in next 7 ingredients. Add 2 1/2 cups flour, stirring to combine. Stir in additional flour a bit at a time to make a soft dough. Knead 10 minutes by hand on a lightly floured surface or 5 minutes on a mixer on low speed.
Place dough in a lightly buttered or oiled large bowl. Cover bowl with plastic wrap and allow to rise until doubled in volume, about 1 hour.
Punch down dough on a lightly floured surface. Knead in cranberries. Shape into a flat round about 8" in diametre. Place on a parchment-lined baking sheet. Cover lightly with plastic wrap and let rise until doubled, about 45 mintues.
Preheat oven to 375F (190C).
Gently brush with melted butter and sprinkle with coarse sugar.
Bake in preheated oven for 40-45 minutes, or until golden. Remove from baking sheet and cool on wire rack.
Tip: If not serving right away, wrap in foil and freeze in a plastic bag. When ready to serve, defrost on counter. Place in preheated 375F oven for 8-10 minutes, serve.