While traditional Vanilla Spritz Cookies contain standard baking ingredients, there are several ways to adjust the recipe to cater to various dietary restrictions. For instance, to make them gluten-free, you can substitute regular flour with a gluten-free all-purpose blend, ensuring it contains xanthan gum for structure. If you’re looking to make a dairy-free version, replace the butter with a plant-based alternative, such as coconut oil or vegan butter, taking care to choose one that still offers a similar fat content. For those needing a lower sugar option, you can use a sugar substitute or reduce the amount of powdered sugar. Additionally, if you're vegan, replace the egg with a mix of flaxseed and water (1 tablespoon of ground flaxseed mixed with 2.5 tablespoons of water equals one egg) or a commercial egg replacer. Always check specific baking instructions for these substitutes, as they can affect texture and flavor.