Simple Oatmeal Cookie Jam Bars

6-ingredient EASY Oatmeal Cookie Jam Bars

Course Dessert
Cuisine American
Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Servings 1 9 x 9-inch baking pan
Author Chelsea


  • 9 x 9 inch Baking Pan
  • 3/4 cup + 2 tablespoons (14 tablespoons) salted butter, softened
  • 1 cup brown sugar lightly packed
  • 1 and 1/4 cups all-purpose flour
  • 1 teaspoon baking soda
  • 1 and 1/4 cup old fashioned oats, do not use steel oats or quick oats
  • 1 cup blackberry jam seedless


  1. Preheat the oven to 350 degrees F.
  2. Line an 9 x 9-inch pan with parchment paper and set aside.

  3. Using hand mixers, cream together the butter and sugar until light and creamy. Using a spoon, scoop the flour into the measuring cups. (If you press the measuring cup into the flour you will pack in too much flour)
  4. Beat in the flour and baking soda. 

  5. Stir in the oats.
  6. Press a little over half of the mixture into the bottom of the pan.
  7. Spread the jam on top of the base avoiding the perimeter of the pan otherwise it will leak out and burn on the sides.

  8. Sprinkle the remaining oat mixture on top of the jam.

  9. Bake for 30-35 minutes or until the top is lightly golden. Remove and allow to cool at room temperature for at least 2 hours before cutting into the bars.

  10. Bars best enjoyed within 2-3 days.