Savory Tomato Butter

Directions

1. 1
   Saute the onion over medium heat in the 2 teaspoons of butter until it just begins to color, 3 to 4 minutes.
2. 2
   Add the tomato puree; bring to a boil.
3. 3
   Turn the heat down to a simmer; cook for about 5 minutes.
4. 4
   Strain the mixture through a fine strainer, pressing to get out most of the liquid.
5. 5
   Put the liquid in a clean saucepan.
6. 6
   Bring to a boil over medium-low heat and cook, stirring occasionally, until reduced to 2 or 3 tablespoons, about 30 minutes.
7. 7
   During the last 10 minutes or so, take care to keep it from scorching.
8. 8
   Let it cool.
9. 9
   Beat the reduction into the remaining butter.
10. 10
    Refrigerate until ready to use.
11. 11
    Makes about 3/4 cup.