Stir the milk and vinegar together in a large bowl. Let it sit 5 minutes until slightly thickened.
Grind your wheat berries on the finest setting your mill offers to create a fluffy, fresh flour.
In a separate bowl, whisk together: freshly milled flour, sugar, baking powder, baking soda, and salt.
Pour the soured milk into a larger bowl and add the eggs and melted butter.
Pour the dry ingredients into the wet ingredients little by little and stir gently until just combined. Don’t overmix—lumps are okay!
Heat your skillet/griddle to medium (around 325–350°F). Lightly grease if needed.
Scoop ¼ cup batter for each pancake. Cook until bubbles form and edges set. Flip and cook for another 1–2 minutes until golden.