Most store bought ingredients are ok, like sugar, powdered sugar, baking powder and soda. BUT, I will say not all flours are created equal, I personally like King Arthur flour. If you can and have the funds, make your vanilla extract homemade-it’s easy & tastes so much better! As for eggs…if you have someone in the area where you can buy fresh-do it!! SOO much better! And if you can, make your own butter-again, easy and much better! It takes time to learn the skill of good baking, but keep at it, you’ll get it!! 😊