Preheat the oven to 180 C (356 F).
Line a muffin mold with paper or silicone cuffs and grease them with a brush - make sure to oil the bottom well.
Sift flour with salt and baking powder into a bowl, mix and set aside.
Mix sugar and almond butter in a separate bowl, add olive oil and mix well until you get a smooth batter. Next, add vanilla extract and milk; Add blueberries and mix.
Gradually add the flour mixture to the batter and mix just until combined.
Divide evenly into the muffin sockets; Make sure there are blueberries in each unit, and flatten gently with a spoon or spatula. Bake in the second lower level of the oven for about 35 minutes, until golden and a wooden skewer inserted in the center comes out clean.
Cool for ten minutes in the pan; inject blueberry jam generously while still in the pan.
Remove from the mold with the cuffs and place on a wire rack to cool completely.