Step 5: Alternate Dry and Wet Ingredients
Add about one-third
of the dry ingredients to the butter mixture. Mix on low speed until just combined. Add half the buttermilk. Mix until just combined. Repeat: dry, buttermilk, dry.
Do not overmix. Overmixing develops gluten, which makes the cake dense and tough. Stop when the flour just disappears.
Step 6: Bake
Pour the batter into your prepared pan. Smooth the top with a spatula.
Bake at 325°F for 55-65 minutes (Bundt pan) or 35-45 minutes (9×13 pan). A toothpick inserted into the center should come out clean or with a few moist crumbs (not wet batter).
If the top is browning too quickly: Loosely tent with aluminum foil for the last 15 minutes of baking.
Step 7: Cool (But Not Completely)
Let the cake cool in the pan for 15 minutes. Then invert onto a wire rack (for a Bundt pan) or leave in the pan (for a 9×13). For the
best sauce absorption, the cake should be warm when you pour the buttermilk sauce over it.
Step-by-Step – The Buttermilk Sauce (Make While the Cake Bakes)
This sauce is simple, fast, and absolutely essential.
Step 1: Combine Ingredients
In a medium saucepan, combine the butter, sugar, buttermilk, vanilla, and baking soda.
Step 2: Bring to a Gentle Boil
Cook over medium heat, stirring frequently, until the butter melts and the sugar dissolves. Bring to a gentle boil.
Step 3: Boil for 1 Minute
Let the sauce boil for 1 minute, stirring constantly. Remove from heat.
Pro tip: Don’t walk away. Buttermilk sauce can boil over quickly. Stir constantly.
Step 4: Let It Cool Slightly
Let the sauce sit for 2-3 minutes before pouring over the cake. You want it warm, not boiling hot.
How to Assemble (The Magic Moment)
Option 1: Bundt Pan (Traditional)
Poke holes all over the warm cake
with a toothpick or skewer (while it’s still on the rack). Place the rack over a baking sheet (to catch drips). Slowly pour the warm buttermilk sauce over the cake, allowing it to soak in.
Pro tip: Pour slowly. Let the sauce absorb before adding more.
Option 2: 9×13 Pan (Easier)
Leave the cake in the pan. Poke holes all over the surface with a fork or skewer. Pour the warm buttermilk sauce over the cake. Let it sit for 30 minutes to absorb.