Making starter grow
Hello, everyone! I'm Bridget. I'm very new to bread and excited to learn. My roommate's friend was very nice and gave me a small amount of sourdough starter. It's probably just about 1/4 cup. How do I make it grow into enough starter to make a loaf?
I've heard recipes that say "toss out a cup of it and replace it with flour/water!" I only have a quarter cup. Tossing out a cup isn't an option.