The recipe was adapted to make it healthier by replacing the butter with coconut oil, whole wheat pastry flour for all - purpose flour, and regular oats for quick oats. (reciperebuild.com)
Coconut oil replaces the butter in this recipe however, if you don't like coconut oil, use vegan butter instead! (beginwithinnutrition.com)
I have noticed some people do replace butter for coconut oil in recipes, and use the same amount without a problem. (dropthesugar.com)