What ingredient is common in both the chocolate peanut butter crunch bar and the chocolate lava cake?

The ingredient that is common in both the chocolate peanut butter crunch bar and the chocolate lava cake is soy. Soy is often used in various dessert recipes, including chocolate-based ones, as it can serve various purposes such as enhancing texture or moisture. In addition to its functional use, soy is prevalent in many processed foods, which may include chocolate products where emulsifiers or other additives derived from soy are included. Knowing that soy is a common allergen, it's essential for those with allergies to identify this ingredient in both desserts, as it affects dietary choices.