Preheat oven to 350 degrees F. Line an 8 inch square pan with foil and oil it.

Combine brown sugar, flour, baking soda, salt, and rolled oats.

Mix in the butters using a pastry blender or a fork to form a crumbly mixture.

Press 2 cups of the mixture into the bottom of the prepared pan.

Spread the jam leaving about a 1/4 inch of the edge. Sprinkle the remaining crumb mixture over the top, and lightly press it into the jam.

Bake for 35 to 40 minutes in preheated oven, or until lightly browned. Allow to cool before cutting into bars. ENJOY!