Preheat oven to 350º F.
Grease or line a baking dish with parchment paper. For thicker blondies, use an 8×8 inch square; for thinner, use 8×11 or 9×13.
Whisk together the flour, baking powder, and salt, and set aside.
Melt the butter and whisk in sugar, beating until light.
Whisk in eggs, then lemon juice.
Add flour mixture and fold in until fully incorporated.
Fold in the diced strawberries.
Spread batter evenly in the baking dish and place in the center of the oven.
Bake for 20 minutes for thinner blondies and 25 minutes for thicker blondies, just until the edges start to turn golden.
Remove from oven and let cool.
While the blondies are cooling, make the glaze.
Add lemon juice to strawberries and mix with a fork.
Stir in the powdered sugar and whisk until smooth.
Remove the cooled blondies from the pan and top with glaze.
Enjoy!