Mini German Pancakes

These were a pinterest find and were a hit with my kids. 

Mini German Pancakes
1 cup milk
6 eggs
1 cup flour
1/2 tsp. salt
1 tsp. vanilla
1 tsp. orange zest (optional)
1/4 cup butter, melted

1. Preheat oven to 400 degrees F. Blend first six ingredients (milk thru orange zest) in a blender. Be careful to see that any flour clumps get well-blended.
2. Blend in butter a little at a time in order to temper the eggs.
3. Grease muffin tins well and distribute batter evenly between 24 tins. Bake for 15 minutes, or until puffy and golden on top.
4. Served with your favorite toppings.