Prepare the apples

• Peel and dice the apples.
• Toss them with the cinnamon and lemon juice.

Make the blondie batter

• Melt the butter and whisk it with the brown sugar until smooth.
• Whisk in the eggs and vanilla extract.
• Fold in the flour, baking powder and salt until just combined.

Assemble

• Fold the cinnamon apples into the batter.
• Spread the batter evenly in a lined baking dish.

Bake

• Bake until the top is golden and a skewer comes out with a few moist crumbs.

Cool and serve

• Let the blondies cool completely in the dish.
• Cut into squares and dust with powdered sugar.