Plum Oat Crumble Bars

Plum Oat Crumble Bars
Look at this photo!  Do I even need to write a description? 
And they taste just as good as they look.  Make them this weekend and serve them up as breakfast, as dessert, as a snack, as a meal.  Your loved ones will thank you for sure!

Dry Ingredients:
2 1/2 cups of old fashioned rolled oats (not quick oats)
1 1/2 cups of flour
1 cup of coconut sugar (or 1/2 cup each of brown and white sugars)
1 1/2 tsp. of baking powder
1 1/2 tsp. of cinnamon
1 tsp. of sea salt

Wet Ingredients:
1 cup of melted butter
1 tsp. of vanilla

Filling:
6 to 8 plums diced, pits removed 
1 tbsp. of cornstarch to coat the plum pieces

Steps:
1. Preheat oven to 375 degrees F.
2. Line a 9 x 13 baking pan with parchment paper and grease with butter
3. In a big bowl combine the main dry ingredients.
4. Add the butter and vanilla and combine until the dough starts to stick together but is still crumbly (they are "crumble bars" after all)
5. Take half of the dough crumb mixture and press into the parchment lined pan.
6. Bake for 10 to 12 minutes on the top rack in the oven.
7. While the crust is baking wash, dry and cut up the plums into small pieces, discarding the pits.
8. Mix the cut up plums with cornstarch and this is your filling.
9. Remove the crust from the oven.
10. Place the plum filling on the baked crust.
11. Crumble the rest of the dough crumble on top of the plum filling.
12. Bake for 30 to 40 minutes on the top rack of the oven until the crust is golden and brown.
13. Cool completely before removing from pan and cutting into bars.
14. Great served with whipped cream or vanilla ice cream.