Vegan Thai Red Curry Paste homemade… It forms a great base for curries and other dishes. As you will know, I make ingredients and condiments from scratch. I use kelp instead of shrimp paste. This is my vegan substitute. I use oil to act as a preservative. It is really easy to make this paste – all it is mixing all the ingredients together. Really, there is nothing like homemade Thai Red Curry Paste.