Warm up your waffle iron
In a liquid measuring cup measure you milk and then add the lemon juice, stir together and let sit.
In a large mixing bowl, stir together the flour, salt, baking soda, and sugar
To the liquid measuring cup add the eggs and butter and whisk together
Pour the wet ingredients slowly into the dry ingredients, mixing together gently until just incorporated, lumps are okay here.
Follow the manufacturers directions for pouring the batter into the waffle maker and cooking
If freezing to eat later: either lay out on a baking sheet and flash freeze, or let cool a bit, then stack with parchment paper separator and put into gallon size freezer bag.
To reheat: pop into the toaster oven until the outside is crisp, but the inside is still soft, about 1 minute. Enjoy with your favorite toppings!