Pre-heat the oven to 210 degrees C (410 F) and lightly grease a muffin pan.
In a small bowl, combine the almond slivers, brown sugar and cinnamon and set aside. This is the streusel.
In a large mixing bowl, combine the flour, raw sugar, baking powder, baking soda and salt.
In a separate bowl, whisk together the dairy-free milk, almond butter, vanilla, flax egg and oil.
Add the wet mix to the dry and fold through until just combined. Add the raspberries and fold again being careful not to over mix the batter.
Place a spoon of batter in a muffin mould and follow with a sprinkle of the streusel. Fill the muffin mould to three-quarters before adding more streusel to the top of the muffin.
Continue with the remaining moulds.
Place the tray in the oven and cook for five minutes before turning the oven down to 170 degrees C (335 F) and cooking for another 15 minutes or until a skewer comes out clean from the centre of the muffin.
Remove from the oven and allow the muffins to sit for 10 minutes before removing from the pan to serve.