Start by making the blueberry chia jam. Add frozen blueberries to a saucepan and heat over medium to low heat for 5 minutes, stirring occasionally. Use a fork or potato masher to press down until there are no chunks left.
Remove from heat and mix in chia seeds and maple syrup and set aside to cool.
Preheat oven to 350F and prepare a baking sheet by lining it with parchment paper.
In a bowl combine almond butter, maple syrup, coconut oil and vanilla extract. Whisk to combine.
Add in almond flour, salt and cinnamon and use a spatula to combine fully.
Use a cookie scoop and roll dough into balls, then place on a baking sheet that is lined with parchment paper. Flatten the tops with the palm of your hand and then use the back of a spoon to create an indent in the center of each one.
In a smaller bowl combine all ingredients for streusel and mix until combined.
Fill each cookie with 1/2-1 tbsp of blueberry chia jam and top with streusel topping.
Bake for 20-23 minutes or until cookies are golden brown on the edges.
Allow to cool for 15-20 minutes before drizzling with icing and enjoying!