The Healthy Blueberry Crumble Bars are easy to make, low-sugar, low-fat and low-calorie, yet the crumbly crust and the gooey middle is so yummy, you can't resist having an extra bite! :)
To make the Blueberry Jam sterilize the jars to prolong your jam's shelf-life. Add the sugar and 2-3 tbsp of water in a saucepan and let the sugar melt over the low flame. Add the blueberries and bring to boil. Dissolve the pectin in 1 tbsp of water and pour it in the saucepan. Let the blueberries boil for 5-10 minutes. The longer your jam boils the thicker it's going to be. Take the pot of the heat and puree the jam in the blender when it's cooled down.
To make the Bars whisk all the dry ingredients together. Mix the egg whites with vanilla, cream cheese and oil (if using butter - let the butter warm up to the room temperature until it's soft). Stir the wet mixture and the dry mixture until incorporated. Put the dough in the fridge to cool for about 30 minutes or up to 12 hours, covered.
Preheat the oven to 350F. Press 2/3 of the dough into a 9X9 pan, leaving the edges slightly elevated to prevent the jam from spilling out. Spread the jam over the dough. Crumble the rest of the dough and sprinkle the crumbs evenly over the jam.
Bake for bars for about 30 minutes or until they are golden brown. Let cool for at least 30 minutes before cutting them and... enjoy! :)