Ingredients
Equipment
Method
- Preheat oven to 350°F. Line a 13x9" pan with parchment or foil and spray with nonstick spray.
- In a food processor, pulse flour and salt. Add cold butter and pulse until crumbly. Add egg yolk and milk, then pulse until dough forms. Chill dough wrapped in plastic.
- In a large bowl, toss diced apples with both sugars, flour, cinnamon, nutmeg, and vanilla extract. Mix well to coat.
- Roll half the dough to 13x9". Drape into pan to form bottom crust. Pour in apple filling, spreading evenly.
- Roll remaining dough slightly larger than 13x9". Drape over filling, tuck edges, and seal gently.
- Brush top with beaten egg white and sprinkle turbinado sugar evenly.
- Bake for 55–65 minutes or until golden and firm. Let cool at least 1 hour before slicing.
Notes
I recommend using a mix of Granny Smith and Honeycrisp apples for the best flavor and texture. Be sure to chill the crust before rolling and let the bars cool fully before slicing.