- 1/2 cup white sugar
- 1/3 cup butter, room temperature
- 2 eggs, room temperature
- 1 1/2 cups all-purpose flour
- 1/2 teaspoon ground cinnamon
- 1/4 teaspoon ground nutmeg
- 1 1/4 teaspoons baking powder
- 1/4 teaspoon salt
- 1/2 cup milk
- 2 teaspoons grapefruit juice
- 2/3 cup confectioners' sugar
- 1/4 cup water
- 1 tablespoon grapefruit juice
- 1 pinch salt
- Preheat oven to 350 degrees F (175 degrees C).
- Cream together the butter and sugar in a large bowl until light and fluffy, about 5 minutes. Add eggs one at a time, beating well after each addition then stir in the milk and grapefruit juice. Mix in the flour, cinnamon, nutmeg, baking powder, and salt. Pour resulting batter into a 9×5 inch loaf pan.
- Bake in preheated oven until a toothpick or small knife inserted in the crown comes out clean, about 45 minutes.
- While the cake is baking, prepare the icing. Place the sugar in a bowl and gradually stir in the water. Add the grapefruit juice and salt; pour over warm cake. It should form a glaze as it cools.