Preheat your oven to 350°F (175°C). Line an 8x8 inch pan with parchment paper.
In a large mixing bowl, combine flour, oats, coconut sugar, baking powder, cinnamon, and salt. Stir in melted vegan butter until the mixture becomes crumbly.
Press about 2/3 of the mixture into the bottom of the prepared pan to form an even crust. Set aside the remaining mixture for the crumble topping.
Bake the bottom layer for 12 - 15 minutes in the preheated oven until light golden color. Then take out of the oven.
Stir in the vanilla into the raspberry preserves.
Spread the raspberry filling over the bottom layer crust in the pan and spread evenly.
Sprinkle the remaining crumble mixture over the raspberry layer.
Bake for 30-35 minutes, or until the top is golden and the filling is bubbling.
Allow the bars to cool completely in the pan before cutting into squares or rectangles. Cooling helps the bars set and makes them easier to cut.