Dutch Pancakes

My mom made these pancake for years while we were growing up. They came from a youth cook book. They were submitted by Mirjam Barker. 
8 eggs
3/4 cup sugar
1/2 teaspoon salt
31/2 cups milk
3/4 cup oil
3 cups flour
1 1/2 tablespoons vanilla

1. Mix together eggs, sugar, vanilla oil, milk and salt.
2. Gradually add in the flour one cup at a time. It should be the consistancey of gravy.
3. Pour 1/2 cup of batter onto a preheated greased griddle.
4. Flip when the edges turn a different color then the middle.
5. Spread pancakes with powered sugar, roll them up served with maple syrup. Any fruit topping would also be good on these. Makes about 15 pancakes.