Blend the wet ingredients: Add the silken tofu, plant-based milk, maple syrup, apple cider vinegar, and vanilla to a blender (or a deep jug if using an immersion blender). Blend until perfectly smooth.
Mix the dry ingredients: Add the oat flour, baking soda, and salt to a medium mixing bowl. Stir to combine.
Combine: Pour the wet mixture into the dry ingredients. Combine with a spatula. The mixture should get bubbly. Let it sit for 10 minutes to thicken.
Bake: Heat a pan (non-stick is best) with coconut oil over medium-high heat. When hot, reduce to medium heat. Add a little bit of batter to the pan. Don't spread it out to obtain fluffy pancakes. Flip the pancakes once bubbles appear at the center and the edges start to set.
Serve with maple syrup.
Notes
Don't skip the resting time. Letting the pancake batter sit for 10 minutes allows the oat flour to absorb moisture and slightly thicken the batter. If you don't let it sit, the batter will be runnier and your pancakes won't be as thick.
Don't spread the batter in the pan. This may feel counterintuitive, as spreading out the batter in circles is what you would do with most pancake batters. However, I have found that not spreading the batter with a spoon (it will spread a little on its own anyway) results in thicker, fluffier pancakes.
Don't overcook the pancakes. If you cook them for too long, they get dense and less fluffy. Flip the pancakes as soon as the edges start to set.
Reheating tips: The microwave is the easiest way to reheat the pancakes, but to keep them fluffy, avoid placing them directly on a plate. Instead, cover the pancakes with a second upside-down plate. The steam trapped inside will soften them, making them taste freshly made.