I am a big fan of Pinterest and discovered this recipe recently there. I would like to thank the source of this great recipe, Mrs. Happy Homemaker. Her beautiful photographs/recipe can be found here. I used her recipe but changed it just a bit...
1-14 ounce can sweetened condensed milk (I tried both the regular and fat-free version...fat free is just as great!)
21 ounces milk (I liked whole milk the best or you could use fat-free half and half.) Just measure this by pouring milk into the empty can 1 1/2 times.
2 1/2 tsp vanilla extract
Grab yourself a Mason jar or something you can close and shake well. Pour all ingredients into the jar and shake it really well to combine. Enjoy!!