Heat the oven to 180°C (160° fan) 350°F.
Grease a 23cm x 33cm|9"×13" baking tin and line the base with non-stick baking paper.
Mix together the dry ingredients in a mixing bowl.
Whisk together the peanut butter, apple sauce, vanilla and milk until blended.
Stir into the dry ingredients until combined.
If themixture is too dry, add a little more soy milk.
The mixture will be very thick and sticky.
Spread into the tin and smooth the top. 6 Bake for about 25 minutes, until set and golden brown around the edges.
Cool completely in the tin and cut into bars when cold.