Creating Key Lime Pie Bars – Browned Butter Blondie is as straightforward as it is enjoyable. Follow these easy steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C). Line an 8×8-inch baking pan with parchment paper for easy removal.
2. Brown the Butter: In a medium saucepan over medium heat, melt the butter. Continue cooking until it turns golden brown and smells nutty. Remove from heat and let it cool slightly.
3. Mix Sugar and Butter: In a large bowl, combine the browned butter and brown sugar, stirring until well mixed.
4. Add Eggs and Vanilla: Incorporate the eggs one at a time, followed by the vanilla extract, mixing until fully united.
5. Incorporate Dry Ingredients: Gradually add the flour, stirring gently until just combined. Be careful not to over-mix.
6. Prepare Key Lime Mixture: In a separate bowl, whisk together the sweetened condensed milk and fresh key lime juice until smooth.
7. Combine Mixtures: Pour the key lime mixture over the blondie batter, using a spatula to smooth it into an even layer.
8. Bake: Transfer the pan to the preheated oven. Bake for 25-30 minutes, or until the edges are set and the center is slightly jiggly.
9. Cool Completely: Allow the bars to cool in the pan for about an hour. The blondies will firm up as they cool.
10. Chill and Cut: For best results, refrigerate the bars for an hour after cooling, then slice into even squares and serve.

With these simple steps, you’ll craft an incredible dessert that is sure to impress both yourself and anyone you share it with!