Norwegian Pancakes - cooking recipe

Ingredients

1 cup granulated sugar or 1 cup caster sugar
4 eggs, lightly beaten
1/2 teaspoon salt
2 cups milk
2 cups all-purpose flour
nonstick cooking spray
butter or margarine, to taste
raspberry jelly, to taste

Preparation

Whisk together well the sugar, eggs, salt, milk, and flour in a large bowl until there are almost no lumps.
Heat a medium-sized nonstick skillet or a crepe pan (sprayed first with nonstick spray) to medium-low.
Pour a THIN layer of batter into the skillet, about 1/4 cup or so- it should be just enough batter to coat the bottom of your pan.
Swirl the pan to coat pan evenly with the batter.
Carefully but quickly flip the pancake as soon it looks like it has started to very lightly brown and has begun to bubble.
Once flipped, the second side only takes a few more seconds to cook- remove quickly to a plate.
Immediately spread pancake with a small amount of butter and about 1/2 tsp of jelly or to taste (do not overfill with either or it will get soggy and too sweet).
Roll up into a tube, jelly-roll style and serve.
Repeat with remaining batter.
Note: If possible, assign a helper to spread the butter& jam onto the cooked pancakes as they come out of the pan.
You may need to re-whisk the batter between each pancake as it may settle.
Also, I sometimes need to add a fresh spray of nonstick spray to the pan between pancakes.