Buttery Buttermilk Cake with Caramel Icing

A buttery buttermilk cake with caramel icing is the kind of old-fashioned dessert that never goes out of style. This cake tastes like your grandmother’s kitchen on a Sunday afternoon. Every bite delivers a tender, golden crumb with a rich buttery flavor, balanced by the tang of buttermilk and topped with a luscious, from-scratch caramel icing that pours like liquid gold and sets into a fudgy, sweet blanket.

Why This Cake Is Exceptionally Buttery and Tender

The combination of real butter and buttermilk creates magic in this cake. Butter provides that unmistakable rich flavor that margarine or oil cannot replicate. Buttermilk adds acidity, which reacts with baking soda to create lift while also breaking down gluten strands for an exceptionally tender crumb. The result is a cake that is dense enough to feel substantial but soft enough to almost dissolve on your tongue. The caramel icing, made with brown sugar and cream, adds a deep, toasty sweetness that perfectly complements the buttery cake beneath.

Ingredients

For the Buttery Buttermilk Cake:

2 cups all-purpose flour
1 cup granulated sugar
1/2 cup unsalted butter, softened
1 cup buttermilk, room temperature
2 large eggs, room temperature
1 teaspoon baking powder
1/2 teaspoon baking soda
1/2 teaspoon salt

For the Caramel Icing:

1 cup brown sugar, packed
1/2 cup unsalted butter
1/4 cup whole milk or heavy cream
2 cups powdered sugar
1 teaspoon vanilla extract

Step-by-Step Instructions

Step 1: Preheat and Prepare

Preheat your oven to 350 degrees Fahrenheit (175 degrees Celsius). Grease and flour a 9×13-inch baking pan or two 8-inch round cake pans.

Step 2: Cream Butter and Sugar

In a large bowl, beat the softened butter and granulated sugar together until light and fluffy, approximately three minutes. Scrape down the sides of the bowl.

Step 3: Add Eggs and Vanilla

Add the eggs one at a time, beating well after each addition. Beat in the vanilla extract.

Step 4: Combine Dry Ingredients

In a separate bowl, whisk together the flour, baking powder, baking soda, and salt.

Step 5: Alternate Dry Ingredients and Buttermilk

Add one-third of the dry ingredients to the butter mixture and mix until just combined. Add half of the buttermilk and mix. Repeat, ending with the final third of dry ingredients. Mix until just incorporated. Do not overmix.

Step 6: Bake

Pour the batter into the prepared pan. Bake for 30 to 35 minutes until a toothpick inserted into the center comes out clean. Cool the cake completely in the pan on a wire rack.

Step 7: Make the Caramel Icing

In a medium saucepan over medium heat, combine the brown sugar, butter, and milk. Stir constantly until the butter melts and the mixture comes to a gentle boil. Boil for one minute without stirring. Remove from heat. Gradually whisk in the powdered sugar and vanilla until smooth and pourable. Work quickly as the icing begins to set within minutes.

Step 8: Ice the Cake

Pour the warm caramel icing over the completely cooled cake. Spread it evenly with a spatula. The icing will set into a soft, fudgy layer. Allow the icing to firm up for 30 minutes before slicing.

Storage Tips

Store this buttery buttermilk cake covered at room temperature for up to three days. The caramel icing remains soft and fudgy. Do not refrigerate unless your kitchen is very warm, as refrigeration can make the icing overly hard. If refrigerated, allow slices to sit at room temperature for 20 minutes before serving.