Combine water, sugar, and vanilla (or almond extract) into a large saucepan.
Bring to a boil over medium heat.
Add rhubarb and cook for 10 minutes, stirring occasionally.
Add strawberries and cook for another 5 - 10 minutes until tender, stirring occasionally.
Add more sugar to your taste preference.
Remove the sauce from the stove.
For a smoother sauce, use an immersion blender and pulse the mixture until desired consistency.
For a chunkier sauce, use a fork to press down/mash the berries and rhubarb.
Allow to cool completely.
Serve using the ideas provided in this blog post.
Bon Appetito!