From Longman Dictionary of Contemporary Englishfrom scratchfrom scratchSTART DOING somethingif you start something from scratch, you begin it without using anything that existed or was prepared before We had to start again from scratch. He had built the business up from scratch. → scratch
Examples from the Corpus
from scratch• Doug baked the cake from scratch.• The company was started from scratch in 1995, but its annual sales are already over $20 million. 