This gluten free apple crisp is a lightened up and refined sugar free version of the Thanksgiving classic! It's made start to finish in a cast iron skillet resulting in an equally tender and crisp texture. This is a healthy fall dessert recipe that will satisfy even the pickiest sweet tooth around your table.
Prepare the topping. Place the nuts in the well of a food processor and pulse until crumbled. Add the oats and sugar and pulse just to combine. Add the butter and pulse until coarse crumbs form. Place the topping in the fridge while you prepare the rest of the ingredients.
In a separate bowl, whisk the maple syrup, cornstarch, vanilla, cinnamon, and nutmeg. Set aside.
Peel, core, and dice the apples into 1/2" pieces. Place a skillet over medium high heat. Add the butter and heat until it melts. Add the apples and cook, stirring occasionally, until they start to release their juices and soften, 8-10 minutes. Add the maple syrup mixture to the skillet and stir to coat. Remove from heat and stir in the lemon juice.
Remove the gluten free topping from the fridge and sprinkle evenly over the the apple. Bake until the topping is golden brown and the filling is bubbling around the edges, 45 minutes.