⭐ Unsalted Butter (Best Gluten-Free Option)
1:1 by volume (e.g., 1 cup butter for 1 cup coconut oil)Butter is composed of about 80% fat and 20% water, similar to coconut oil's fat content but with some moisture. This fat solidifies at room temperature, providing structure and contributing to the cookie’s chewiness and spread. Butter’s milk solids also aid in browning through Maillard reactions, enhancing flavor and color.
When substituting, use unsalted butter to control salt levels. Soften butter to room temperature for even mixing. Be aware that butter’s water content may slightly increase cookie spread compared to coconut oil.
Compared to coconut oil, butter imparts a more buttery, rich flavor and a slightly softer texture. Cookies may brown more and have a more traditional cookie taste.