Combine Ingredients: Combine melted and cooled butter with both sugars, your vanilla extract, and the egg. Mix these ingredients until combined with a rubber spatula. In a small bowl, whisk together all dry ingredients. Add dry ingredients into the wet mix using the same spatula until combined. Fold in chocolate chips and candies, and stir with the spatula.
1⅓ cups gluten-free flour, ½ tsp baking soda, ¼ tsp salt, ½ cup chocolate chips, ⅓ cup pastel chocolate eggs, ½ cup Easter M&Ms, ½ cup butter, 1 large egg, 2 tsp vanilla extract, ¾ cup brown sugar, ¼ cup sugar