Begin by lining an 8x8 square baking dish with parchment paper. Then preheat the oven to 350ºF.
In a mixing bowl, combine all the dry ingredients together.
Then, mix in the melted butter and vanilla extract. Mixture will be slightly wet and crumbly. Reserve about 3/4 cup of the mixture for the topping. Set aside for later.
Pack the remaining oatmeal mixture down onto the parchment paper in the baking dish using your hands. Bake this at 350º for about 20 minutes. The bars will puff up slightly and be a slight golden brown when they’re ready.
Next, pour the jam onto the cookie bars. Spread this evenly over the entire surface of the breakfast bars. Then crumble the rest of oatmeal topping onto the jam.
Bake again for 15-20 minutes.
Remove from the oven and let the breakfast bars cool completely before slicing them into squares and serving. You may need to place them in the refrigerator to firm up enough for slicing.