In a large bowl, whisk together the flour, yeast, sugar, and spices. Toss in the chocolate chips.
Make a well in the centre, and add in the milk, butter, egg, orange juice, and zest. Mix well, then bring everything together with your hands to form a sticky dough.
Divide the dough into 12 balls. Place them in a greased 9x13-inch baking tray, cover and leave to rise in a warm place for another hour, or until they are touching and doubled in size.
Bake for 18 - 20 minutes, or until risen and golden brown.
Leftovers can be stored, covered tightly, at room temperature or in the fridge for up to 1 week.
Baked buns also freeze well for up to 3 months. Thaw overnight in the fridge. Warm up or toast before serving.
The calories are an estimate only.