
Preheat the oven to 350°F (175°C). Line a baking sheet with parchment paper.
Add the vinegar to the milk and stir to combine. This makes a homemade buttermilk.
In a large mixing bowl, mix together almond flour, sugar (or your choice of sweetener), baking powder, and salt.
Add the chopped butter, and using a fork or a pastry cutter, mix the butter into the almond flour mixture until a crumbly texture remains.
Add the milk and whisked eggs and mix until combined.
Using a greased ice cream scoop, place the biscuit dough onto the lined baking sheet about 2-inches apart. You will have 9 biscuit dough mounds.
Using a the back of a greased measuring cup or spoon, lightly press the the top of the biscuit dough mounds to form a circular shape. Bake for 14-16 minutes or until the tops are beginning to turn light golden brown.
Allow to cool for 5-10 minutes. If desired, brush with extra melted butter on top before serving.