Tried and true. Had a crock of this in fridge for years.

Alaska's Treehouse
Bed and Breakfast
Seward, Alaska
Specialty Recipe
Treehouse Signature Sourdough Pancakes
The Sourdough Starter: Our sourdough starter is over 90 years old and was handed down from an Alaskan pioneer woman to our good friends, who then shared it with us over twenty years ago. We frequently send a small amount off with guests so they can nurture their own sourdough pot and make these special pancakes... a traditional Alaskan pioneer breakfast. So the same starter now has traveled all over the States and beyond.
Sourdough Starter:
1 Tablespoon dry yeast
2-1/2 cups warm water
2 teaspoons sugar or honey
2-1/2 cups flour
Mix together ingredients and let ferment 5 days at room temperature, stirring daily. Then place in refrigerator. Starter should be used/replenished every seven to ten days.

Sourdough Pancakes:
2-1/2 cups flour
2 cups warm water
1 cup sourdough starter
1/4 cup powdered skim milk
1 egg
2 Tablespoons sugar
1 teaspoon salt
1 teaspoon baking soda
The night before, mix flour with the warm water and add starter. Stir well and cover with a damp cloth. In the morning, take out 1 cup of starter and pour back into crock with original starter. Add powdered milk and egg to remaining batter, beating well. Combine sugar, salt, and baking soda; sprinkle evenly over batter, then fold in gently. Let batter rest a few minutes. Cook on a hot, oiled griddle.
Serves: 4