1 and 1/4cupsAll Purpose Flour SPOON the flour directly into the measuring cup from the container- DO NOT scoop the flour from the container or bag directly with the measuring cup.
1.3Pounds Sweet Apples (3 medium apples such as pink lady or Honeycrisp) Peeled and Sliced *See notes
1/8tspAll spice (ground)
1/4CupButterCold and diced
3/4Cup Old Fashion Oats
Preheat the oven to 300°F. Line the bottom and sides of a 7 x 11 -inch (or similar sized) baking pan with parchment paper, leaving enough overhang on all sides. Set aside.
Stir the melted butter, granulated sugar, vanilla, salt and the flour and stir until everything is combined. Press the mixture evenly into the prepared baking pan. Bake for 22 to 24 minutes.
While the crust is baking, start preparing the filling and crumb.
Combine the sliced apples, cinnamon, nutmeg, all spice, lemon, melted butter and cornstarch together in a large bowl. Mix until all of the apples are evenly coated.
Mix all the ingredients. Cut in the chilled butter with a pastry blender or with your hands, until the mixture resembles coarse crumbs.
Remove the crust from the oven, and turn the oven up to 350°F.
Evenly layer the apples on top of the warm crust and press them down to fit. Sprinkle the apple layer with the crumb and bake for approximately 35 minutes or until the crumb is golden brown.
Remove from the oven and allow to cool for at least 35 to 45 minutes at room temperature. Lift the parchment out of the pan using the overhang on the sides and cut into bars. Cut them into 12 bars or more(if you prefer smaller.)
Apples: I am using sweet apples, that's why I am not using any sugar in the filling. If you use a mix of sweet and tart apples you may have to add 1 to 2 tablespoons of sugar.
Make Ahead: You can make them up to 2 days ahead of time. Keep them in the fridge in the pan. Cut them the day you will serve them.
These freeze beautifully. Thaw out the night before.