The Best Gooey Blondies Recipe

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We promise these blondies won't disappoint. They're gooey, rich, and delicious. Use your favorite add-ins like pecans, butterscotch chips, or chocolate chips in this versatile recipe!


  • 1 cup butter
  • 2 cups dark brown sugar (packed)
  • 2 eggs plus 1 yolk (at room temperature)
  • 2 tsp vanilla extract
  • 2 cups all-purpose flour
  • 1 tsp salt
  • ½ tsp baking powder
  • ¼ tsp baking soda
  • 1 cup add-ins of your choice (optional)


  1. Preheat oven to 350° and prepare a 9x13" baking dish.
  2. Melt butter in medium saucepan over low heat and mix in brown sugar until fully combined. Transfer to a large bowl and let cool, stirring periodically. Add vanilla extract.
    *Be sure to let mixture cool! If you do the next step while it's still hot, the eggs will scramble and you'll be left with sweet buttery scrambled eggs (I'll pass lol).
  3. While the butter/sugar mixture cools, whisk flour, salt, baking powder, and baking soda together in a medium bowl.
  4. Add eggs and egg yolk one at a time to the butter/sugar mixture and mix well.
  5. Fold wet and dry ingredients together until just combined and there are no clumps.
    *Do not overmix! Overmixing the batter can lead to tough, dry, blondies and no one wants that.
  6. Stir in any add-ins.
  7. Pour into greased baking dish and bake for 25-30 minutes or until golden brown.
    *The middle will still be gooey - this is okay! The middle will finish cooking as they cool.
  8. Let cool (if you can) and enjoy!


These blondies will last at room-temperature in an air-tight container for up to a week.

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