Ingredients You’ll Need

For this easy yet irresistible recipe, you’ll only need a few ingredients — most of which you may already have in your pantry:

  • 2 boxes of brownie mix (any brand or flavor you love)
  • 4 large eggs (you’ll add one extra egg beyond what the box calls for)
  • Water, oil, or butter (as instructed on the box)
  • Nonstick cooking spray or butter (for greasing the muffin pans)

That’s it! No fancy ingredients required — just the perfect blend of convenience and homemade care.

Equipment Checklist

Before diving in, make sure you have the following:

  • Two standard 12-cup muffin pans
  • A large mixing bowl
  • A whisk or electric mixer
  • Measuring cups and spoons
  • A rubber spatula
  • Nonstick spray or baking brush
  • A butter knife or offset spatula (for easy removal)

Using quality muffin pans can make a difference — heavy-duty or nonstick ones distribute heat more evenly and prevent overbaking.

Step-by-Step Instructions

  1. Preheat the Oven:
    Set your oven to 350°F (175°C) and allow it to fully preheat before you begin baking. Consistent heat ensures evenly baked brownie muffins with that shiny, crackled surface.
  2. Prepare the Batter:
    In a large bowl, mix together the brownie mix, eggs, water, and oil (or butter, if preferred). Stir just until combined — avoid overmixing, as that can introduce too much air and affect the texture.
  3. Add the Extra Egg:
    The secret to this recipe lies in adding one extra egg. This gives the brownies a slightly more cake-like structure while keeping the inside moist and chewy. It also helps them rise beautifully in the muffin pan.
  4. Grease the Pans:
    Spray each cup of the muffin pan generously with nonstick cooking spray. Make sure to coat the sides and bottoms well — brownie batter is sticky, and this step ensures easy removal later.
  5. Fill the Muffin Cups:
    Spoon the batter evenly into the muffin cups, filling each about ¾ full. This allows enough room for the brownies to rise without spilling over.
  6. Bake:
    Place the muffin pans in the center of the oven and bake for 18–22 minutes. Oven times can vary slightly, so start checking around the 18-minute mark. The tops should be set and shiny, with slight cracks — a sign of perfect brownies.
  7. Cool Before Removing:
    Once baked, allow the brownie muffins to cool in the pan for about 5 minutes. This helps them firm up slightly, making removal easier. Use the tip of a butter knife to gently lift each muffin from the pan.

Tips for Perfect Brownie Muffins

  • Don’t Overbake: Brownies continue to cook slightly after being removed from the oven. To keep them chewy, pull them out when a toothpick inserted in the center comes out with a few moist crumbs.
  • Use Good Quality Mix: Not all brownie mixes are created equal. Choose one known for its fudgy texture for best results.
  • Add Extras: Fold in chocolate chips, chopped nuts, or swirls of caramel for an upgraded flavor experience.
  • Use Paper Liners: If you prefer easier cleanup, use paper liners — but still spray them lightly for effortless peeling.