Homemade Hot Fudge Sauce: Red Velvet

0 Whisk the cocoa and buttermilk together in a pan over medium heat.
1 Continue to whisk until smooth.
2 Add the sweetened condensed milk and corn syrup.
3 Bring to a simmer, stirring often.
4 Add the butter and cream cheese.
5 Whisk until smooth.
6 Add remaining ingredients and simmer until the mixture thickens slightly, about 5 minutes.
7 Remove from heat.
8 Store in a covered jar in the refrigerator for up to 2 weeks.