Carefully hollow out one of the loaves to within 1 inch of sides and bottom. Cube the remaining loaf and bread that was removed into 1-inch chunks. Store in King's Hawaiian plastic bags until ready to serve. Mix cream cheese, mayonnaise, mustard, cayenne pepper, and garlic powder, until smooth. Fold in artichoke hearts and crab. Gently warm seafood mixture in microwave or stovetop. Remove from heat. Reserve 1/2 cup cheese for garnishing. Mix remaining cheese into mixture. Pour warm dip into hollowed bread loaf. Garnish with remaining cheese. Arrange bread cubes around loaf when ready to serve. Serve warm or cold.
Preparation time: 20 minutes
Makes 1 quart