In a food processor add in the butter, flour, almond meal and brown sugar and process on low speed until the butter is the size of rice.
Transfer the mixture to a medium size bowl and mix it together with the oats and cinnamon until combined. Set aside.
Next, add the sliced apples to a 10” cast iron skillet along with the currants, lemon juice and sugar, and mix until combined.
Top the apples off with the oatmeal mixture until the apples are completely covered and bake in the oven at 350° for 30 to 35 minutes or until it is lightly browned.