Step 1

Preheat the oven to 350° F and grease a 9×9′ baking pan.

Step 2

In a large bowl, combine the dry ingredients; rolled oats, brown sugar, almonds, cinnamon, baking powder and salt, and stir to combine.

Step 3

In a medium bowl, combine the wet ingredients; milk, eggs, melted butter and vanilla extract, and whisk to combine.

Step 4

Add the wet ingredients to the dry ingredients and mix until well incorporated. Add blueberries and gently fold into the oatmeal mixture.

Step 5

Transfer the mixture to the greased baking pan, gently spreading it evenly into the pan with a spatula.

Step 6

Optional:  In a small bowl, combine the crumble topping ingredients and mix together with your hands until well incorporated, then gently scatter the topping over the top of the pan.

Step 7

Transfer baking pan to the oven to bake for 30-35 minutes until bars are cooked and the top is golden brown.

Step 8

Once cooked, removed from the oven, allow to cool slightly (5-10 minutes), and then slice into 9 even squares.

Step 9

The bars can be served immediately, stored in an airtight container in the fridge for 5 days or in the freezer for 3 months.