Step 1

Preheat oven to 350°.

Step 2

In a small bowl, stir together all the filling ingredients. Fill a half-pint Mason jar or an eight-ounce ramekin with the mixture, pressing down with clean hands or the back of a spoon to really pack it in and create juice. Set aside.

Step 3

To make the topping, in another small bowl, mix together the flour, oats, brown sugar and cinnamon. Pour in the melted butter and stir until evenly moistened.

Step 4

Sprinkle the topping over the peaches, mounding up as high as possible.

Step 5

Place the jar or ramekin on a small baking sheet to collect juices, and bake in the preheated oven for 20-25 minutes, or until the filling is bubbly and the top is golden brown. Let cool for 10-15 minutes before serving.