Mix all of the dry ingredients, except the raisins, in a medium sized mixing bowl. (Optional: sift the flour before mixing for fluffier waffles).
If your plant milk is cold, pour it into a separate bowl and microwave it in 10 second intervals until it feels about room-temperature. Once it is no longer cold, whisk the other wet ingredients into the milk.
Pour the wet ingredient mixture into the dry ingredient mixture and stir to combine, making sure to remove any large lumps of flour.
Fold the raisins into the batter
Set up your waffle iron based on its instructions. Once it is ready to use, scoop between ⅓ - ½ cup of batter into the waffle iron (this will vary based on the size of your waffle iron). Using a spatula, spread the batter out slightly on the waffle iron - leaving just a little bit of room on the edges for it to naturally spread out the rest of the way. Cook based on the waffle iron instructions*.
Safely remove waffle from waffle iron once cooked (I like to use a spatula to gently peel the edges off of the waffle iron, and then the rest usually comes off easily!). Repeat this whole process with the remaining batter.
Top as desired and serve! (If saving for the next day, place cooked waffles in a ziplock bag in the fridge and reheat when ready to eat).