Step 1

oven to 350˚ F.

Step 2

in a small bowl the apple with 1 tablespoon of sugar and cinnamon.  Divide apple into 2 individual ramekins and press down flat.

Step 3

Mix flour and 2 tablespoons sugar, then add melted butter in.  Mix with a fork until mixture clumps together.

Step 4

in oats and walnuts, if using.  Sprinkle crumble evenly on top of the apple mixture.

Step 5

Bake for 25-30 minutes, until topping is golden brown, and apples are tender.  Best served immediately.