Start by preheating the oven to 375 degrees and a line a muffin tin with liners.
Take your vegan milk, mix it with the vinegar, and set it aside.
Take a small bowl, pour your raspberries and ¼ cup of white sugar, and stir. Set this aside while you prepare the rest.
Take your stand mixer and mix the remaining ingredients (except the 2 TB of brown sugar and raspberries). Once mixed, swirl the jam in, add the raspberries, and carefully stir them into the batter.
Take your prepared muffin tin and fill the cups ¾ full; sprinkle with the remaining 2 TB of brown sugar over the batter.
Bake for 15-18 minutes. Check with a toothpick for doneness. Do not overbake. Let cool for a few minutes before removing them onto a cooling rack from the pan.