| 1. blender margarine |
| Cook's Illustrated #02 - May/June 1993 |
| 2. blender sweet butter |
| Joy of Cooking by Irma S. Rombauer and Marion Rombauer Becker (1975) |
| 3. butter cream 101 |
| Fine Cooking Magazine - #78 - May 2006 |
| 4. butter making |
| The Country Kitchen Cookbook by Focasta Innes (1979) |
| 5. churned sweet butter |
| Joy of Cooking by Irma S. Rombauer and Marion Rombauer Becker (1975) |
| 6. cooked and salted butter |
| Couscous and Other Good Food From Morocco by Paula Wolfert (1987) |
| 7. country butter |
| Cheaper and Better by Nancy Birnes (1988) |
| 8. fresh butter |
| Sunset Breads Step-by-Step Techniques (1984) |
| 9. gelatin-expanded butter |
| Joy of Cooking by Irma S. Rombauer and Marion Rombauer Becker (1975) |
| 10. making compound butters |
| LaVarene Pratique by Anne Willan (1989) |
| 11. ooh la la butter |
| Cheaper and Better by Nancy Birnes (1988) |
| 12. soft butter |
| Vita-Mix Whole Food Machine Recipes and Instructions by Rybarczyk, Struhar, Wride, Shrimplin (1996) |
| 13. sweet butter |
| Better Than Store Bought by Helen Witty and Elizabeth Schneider Colchie (1979) |
| 14. sweet butters |
| Cheaper and Better by Nancy Birnes (1988) |
| 15. whipped butter |
| Cheaper and Better by Nancy Birnes (1988) |
| 16. whipped butter |
| Pillsbury Kitchens' Cookbook by The Pillsbury Company (1979) |