01 -
Preheat oven to 350°F (180°C). Line 9-inch pan with parchment and butter the sides.
02 -
Heat brown sugar, salt, butter, and corn syrup until dissolved. Add pecans and stir to coat. Set aside to cool.
03 -
Whisk together flour, baking powder, and baking soda in a bowl.
04 -
Beat butter, sugars, and vanilla for 2-3 minutes. Add eggs and mix well.
05 -
Alternately add dry ingredients and buttermilk to butter mixture, mixing until just combined.
06 -
Pour cooled pecan mixture into pan. Top with cake batter and spread evenly.
07 -
Bake at 350°F for 35-40 minutes until toothpick comes out clean.
08 -
Cool to room temperature, run knife around edges, flip onto plate.