To prepare a vegan buttery drop biscuits recipe, first you need to prepare your ingredients. First, you'll need your flour, baking powder, sugar, and salt. Then, add your wet ingredients to the dry ingredients and mix them together until they're combined. Next, preheat your oven to 180C/350F/gas 4. Line your baking tray with baking paper and grease it with non-stick cooking spray. Add your butter and vanilla extract to your mixing bowl and beat it until it's light and fluffy, about 2 minutes. Now, pour your dry mixture into your greased baking pan and bake it for about 20 minutes, or until the top is golden brown. Remove the pan from the oven and allow it to cool for 5 minutes before transferring the mixture to an airtight container and storing it in the fridge for up to 3 days.