This apple crumble tart for one is filled with tart apples for the perfect sweet, tart, crumbly bite. To save time, add a few ingredients to half of the shortbread like crust recipe to make the crumble topping.
Assemble filing: Add apple, all purpose flour, sugar, lemon juice, cinnamon, a pinch of salt, and a pinch of nutmeg to a small-medium sized mixing bowl. Toss.