In a large bowl, mix all dry ingredients, then add milk and stir. This will give you a thick batter.
Add onions and mix until well blended.
Heat 1/2 inch oil in skillet over medium high heat. Drop batter by tablespoons into the hot oil.
Flatten with the back of a spatula, then brown on both sides until crispy, golden brown.
Drain on paper towel, sprinkle salt to taste.
Pro Tip: You can make these even more craveworthy by adding 1/4 cup crumbled, cooked bacon to the batter before cooking. Other tasty add ins include: 1/4 cup green pepper, 1/4 cup cooked mushroom, or sprinkle cheddar on top after you've finished cooking. So. Delicious.