1 1/3cupall purpose flour , can use a mix of whole-wheat, see notes above
1cuprolled oats
1/2cupbrown sugar
1/4teaspoonground cinnamon
1teaspoonlemon zest
1teaspoonbaking powder
1/8teaspoonsalt
10tablespoonsmelted butter (vegan butter works!)
Peach Pie Filling
4cupschopped, ripe peaches, about 550 grams
1tablespoonpure lemon juice
1teaspoonfresh lemon zest
1/4cupbrown sugar
1tablespooncornstarch
1/4teaspoonground nutmeg
Instructions
Preheat the oven to 350 degrees F. Prepare a 9" square baking dish with cooking spray or overlapping parchment paper for easy removal.
Whisk together the flour rolled oats, brown sugar, baking powder, lemon zest, 1/2 teaspoon ground cinnamon in the base of a food processor fitted with a dough blad
Press 2/3 of the crust into the prepared baker and bake for 10 minutes, remove and let cool slightly.
While the crust is par baking, make the peaches. In a bowl, mix together the peaches, sugar, cornstarch, lemon juice and zest.
Add the peach filling to the slightly cooled parbaked crust, then add the remaining crust on top, pressing down so the crust is no longer crumbly and sticks to the peach filling.
Bake for 35-40 minutes until golden brown and peach filling is bubbly.
Remove from oven and let cool completely, at least 2 hours on a wire rack. The bars need to cool completely for the filling to set.