4large fresh peaches (about 660g / 1.4 lbs )Use peaches that are ripe and juicy but not overly soft. Peeling is optional.
⅓cupgranulated sugar (70g)
2tablespoonscornstarch (16g)
2teaspoonslemon juice, freshly squeezed
½teaspoonground cinnamon
For the Crust & Crumble Topping
1cupall-purpose flour (125g)
1teaspoonbaking powder
¼teaspoonground cinnamon
1cupold-fashioned oats (90g)
¼teaspoonsalt
½cupunsalted butter at room temperature (113g)
½cuplight brown sugar packed (100g)
½teaspoonvanilla extract
Instructions
Preheat the oven to 350°F / 180°C. Line an 8-inch (20 cm) square pan with parchment paper, leaving a little overhang to help lift the dessert out easily later.
Peel and chop the peaches into chunks (about 1 inch / 2.5 cm).
4 large fresh peaches (about 660g / 1.4 lbs )
In a medium bowl, combine the peaches, lemon juice, cornstarch, sugar, and cinnamon. Mix well until everything is evenly coated.
⅓ cup granulated sugar (70g), 2 tablespoons cornstarch (16g), 2 teaspoons lemon juice, freshly squeezed, ½ teaspoon ground cinnamon
Place the peaches in a sieve and let them sit for about 10-15 minutes to drain any excess liquid. (You can save the juice to make a simple glaze, if you like.)
Meanwhile, make the crust & crumble topping: In a medium bowl, whisk together the flour, oats, cinnamon, baking powder, and salt. Set it aside.
1 cup all-purpose flour (125g), 1 teaspoon baking powder, ¼ teaspoon ground cinnamon, 1 cup old-fashioned oats (90g), ¼ teaspoon salt
In a separate large bowl, beat the softened butter and brown sugar with a hand mixer on medium speed until smooth and creamy, about 1 minute.
½ cup unsalted butter at room temperature (113g), ½ cup light brown sugar packed (100g)
Scrape down the bowl and add the vanilla. Mix to combine.
½ teaspoon vanilla extract
Add the dry ingredients to the butter mixture and beat on low until it's well-combined and crumbly.
Press a bit more than half the dough into the bottom of your pan. Use your hands or the bottom of a glass to press it in evenly, but don't press too firmly.
Bake the crust for 7-8 minutes, then remove it from the oven. (Leave the oven on.)
With the rest of the dough, gently squeeze some into larger clumps these will be your crumble topping. Set aside for now.
Spoon the strained peaches evenly over the partially baked crust - just the fruit, not the extra liquid.
Sprinkle the reserved crumble on top, scattering a mix of fine crumbs and larger clumps for texture.
Bake for about 30-40 minutes, or until the top is golden brown.
Let the bars cool completely at room temperature before slicing. You can serve them plain, warm with a scoop of vanilla ice cream, or drizzle with a simple glaze made by whisking the reserved peach juice with some powdered sugar.
Enjoy!
Notes
Tips for Success
Taste your peaches! Adjust the sugar if your peaches are extra sweet or a bit tart.
Don't skip the lemon juice. It really brightens the flavor.
Straining the peaches is important. Extra liquid could make the bars soggy.
Line your pan with parchment paper. This is essential for easy cleanup and neat slices because you can use it to lift the dessert out of the pan.
Let it cool. For firm bars, let it cool completely before slicing.