Preheat the oven to 350 degrees.

In a large bowl beat granulated butter and sugar until fluffy and lighter in texture and color. Then add the eggs, one at a time, fully incorporating after each addition.

Beat in lime juice, reserving about a tablespoon to later use for the blackberry glaze.

Whisk flour, baking powder and salt and carefully mix in just until combined.

Then gently fold in the blackberries.

Spread Blackberry Lime Blondie batter in 9 inch square baking dish lined with parchment paper, or greased lightly with butter.

Bake 30-35 minutes, until cooked through.

Remove from oven and allow to cool completely, about 1 hour.

Meanwhile, prepare Blackberry Lime Glaze. In a small microwave safe bowl heat blackberries until they release juices, about a minute on low power. Smash blackberries slightly with a large spoon then strain the seeds out and combine with 1 tablespoon lime juice. Add powdered sugar to a medium bowl and whisk in blackberry juice mixture a couple tablespoons at a time until the glaze reaches pouring consistency.

Pour bright pink blackberry glaze over cooled blondies. Allow glaze to set for about an hour.

Then slice using a sharp knife into clean squares.