Step 1

Preheat the oven to 350°F.

Step 2

Spray a 9x5-inch loaf pan liberally with nonstick cooking spray. Set aside.

Step 3

Place the butter and sugar in a large mixing bowl. Using a hand mixer fitted with a whisk attachment or stand mixer fitted with a paddle attachment, cream the ingredients together on medium speed for 3-4 minutes, or until pale and fluffy. Add the eggs one at a time, beating for 15-20 seconds between each and scraping inside of bowl occasionally, until the mixture is smooth and combined.

Step 4

Sift the flour and baking powder into the bowl. Beat the mixture on low until it becomes a smooth, thick batter.

Step 5

Use a rubber spatula to transfer the batter into the loaf pan.

Step 6

Transfer the pan to the middle rack of the preheated oven.

Step 7

Bake the cake until a toothpick inserted in the center comes out clean, about 1 hour.

Step 8

Check for doneness. Remove from oven or add time as needed.

Step 9

Allow the cake to cool in the pan for 15-20 minutes.

Step 10

To release the cake, run a butter knife between the edge of the cake and the pan. Turn the cake onto a cooling rack.

Step 11

Let the cake cool for 1 1/2 -2 hours before slicing and serving.