Preheat the oven to 350 degrees F (175 degrees C).

Peel, core, and slice the apples.

In a large bowl, combine the sliced apples with lemon zest, lemon juice, granulated sugar, brown sugar, all-purpose flour, ground cinnamon, ground nutmeg, and clove.

Mix well to coat the apples evenly with the sugar and spices.

Pour the apple mixture into a 9x12x2-inch baking dish.

In a separate bowl, combine all-purpose flour, granulated sugar, light brown sugar, kosher salt, and old-fashioned oatmeal.

Add the cold, diced unsalted butter to the dry ingredients.

Using an electric mixer fitted with the paddle attachment, mix on low speed until the mixture forms large crumbles (approximately 1 minute).

Sprinkle the crumble topping evenly over the apple filling, ensuring the fruit is completely covered.

Place the baking dish on a sheet pan to catch any drips.

Bake in the preheated oven for 50 minutes to 1 hour, or until the topping is golden brown and the apple filling is bubbly.

Let cool slightly before serving.

Serve warm and enjoy!