The rise of peanut butter in the United States has become a $2 billion industry, with advancements in technology and savvy marketing contributing to its popularity. Technological breakthroughs like hydrogenation in the early 1900s made widespread distribution of peanut butter possible. The introduction of commercially developed peanut butter by Peter Pan in the 1920s, using hydrogenation with a patent from Skippy creator Joseph Rosefield, revolutionized the industry. Today, Jif, Skippy, and Peter Pan dominate the market, with Jif leading at 39.4% market share. Private-label brands like Costco's Kirkland and Target's Good & Gather also contribute a significant portion. The industry faced setbacks due to peanut allergies and a salmonella outbreak in 2022, but peanut butter's enduring love remained strong. Companies like Smucker's and Hormel Foods are focusing on innovation and exploring new product formats. Despite challenges, peanut butter consumption reached new heights during the COVID-19 pandemic, reinforcing its role as a comfort food.