Party Cake

Doctoring a boxed cake mix is the home baker’s favorite shortcut, and Party Cake is one of the classic formulas that turns a supermarket pouch into something that tastes closer to a bakery cake. The trick is in the ratios: an extra ¼ cup of powdered sugar, four whole eggs instead of the usual three, and oil in place of butter for a tender crumb that holds moisture for days.

The result bakes tall and level in a bundt pan, or produces a pillowy sheet cake that slices cleanly for birthday parties and potlucks. Because the base is just a doctored mix, any cake flavor works: yellow, chocolate, lemon, strawberry, spice, even red velvet.

Mix everything on low for 30 seconds to hydrate the dry, then beat 3 to 4 minutes on medium until the batter is smooth and slightly lighter in color. That long beat is what gives the cake its fine, bakery-style crumb. Bake 50 minutes, cool, frost, serve.

Pro Tips

• Bring eggs to room temperature before mixing. Cold eggs make batter sluggish and leave an uneven crumb.
• Beat the full 3 to 4 minutes at medium speed. Under-beaten doctored cake mix cakes taste dense and boxy; well-beaten ones taste like the real deal.
• Grease and flour the pan heavily. This rich batter sticks harder than standard cake batter.
• Check doneness with a toothpick at 45 minutes. Bundt pans can vary by 5 to 10 minutes depending on the material.
• Cool 15 minutes in the pan, then invert onto a rack. Too soon and the cake breaks; too late and it sweats and sticks.

Variations

• Use chocolate cake mix with chocolate chips folded into the batter for a double-chocolate version.
• Swap ¼ cup of water for orange or lemon juice and add 1 tablespoon of zest for a citrus cake.
• Drizzle a simple powdered-sugar glaze over the cooled bundt for a tidy finish.