Butterscotch Dandy Cake

This is butterscotch cake done the long way, the right way. The flavor base is a cooked brown sugar butterscotch syrup, taken to the hard-ball stage (250°F / 121°C) before being thinned with hot milk into a smooth sauce. That deep, caramelized base flavor is folded into the batter and you can taste the difference against any cake mix or extract-flavored version.

Watch the candy thermometer. Hard-ball stage is specific: a drop of syrup in cold water forms a firm, pliable ball. Stop short of that and the butterscotch flavor is weak. Push past it and the sugar burns into bitter caramel that ruins the cake.

Let the syrup cool before adding to the batter. Warm syrup melts the shortening and you lose the air pockets you spent five minutes creaming in. Room temperature is the right target.

Alternate the dry ingredients with the cooled syrup, starting and ending with dry. This produces a balanced batter without overworking the gluten. The starting-and-ending-with-dry rule keeps the flour mixture from going into shock against the wet syrup.

The frosting is a second cooked brown sugar caramel, cooled and beaten with powdered sugar. Don’t shortcut by using a plain American buttercream tinted brown. The cooked frosting tastes profoundly different, with that same deep butterscotch character running through the entire bite.

Pro Tips

• Use dark brown sugar for deeper, more molasses-forward butterscotch flavor.
• Don’t open the oven during baking. Butter-and-shortening batters can sink from temperature shock.
• If the frosting thickens too much as it cools, thin with cream a few drops at a time, not water.
• Cool the cake layers completely before frosting. Warm cake melts the buttercream into a sad puddle.

Variations

• Sprinkle the frosted cake with chopped pecans or toffee bits for crunch.
• Add a teaspoon of bourbon to the syrup for boozy depth.
• Sandwich the layers with salted caramel sauce instead of frosting between for extra richness.