Thaw dough just until it can be sliced. Cut into 16 pieces. Melt butter over low heat. Remove from heat and stir in egg, parsley, and garlic powder.
Dip pieces of dough into butter mixture, coating completely.
Arrange in single layer in buttered 9 x 5" loaf pan. Pour over any remaining butter mixture. Let rise in warm place until dough just reaches top of pan. Preheat ovaen to 375 degrees F. Bake until top is golden brown, about 25 minutes.