Homemade Ketchup

1. 1

   Puree tomatoes (with puree from can) in a blender until smooth.

2. 2

   Cook onion in oil in a 4-quart heavy saucepan over moderate heat, stirring, until softened, about 8 minutes.

3. 3

   Add pureed tomatoes, tomato paste, brown sugar, vinegar, and salt and simmer, uncovered, stirring occasionally, until very thick, about 1 hour (stir more frequently toward end of cooking to prevent scorching).

4. 4

   Puree ketchup in 2 batches in blender until smooth (use caution when blending hot liquids).

5. 5

   Chill, covered, at least 2 hours (for flavors to develop).

* Per serving · 4 servings · Values may vary.

No additional tips available.