Homemade chocolate sauce

Ingredients 

• 3/4 cup white sugar
• 1 1/2 Tbsp all-purpose flour
• 1/2 cup unsweetened cocoa powder
• 1 1/4 cups milk
• 2 Tbsp butter
• 1/2 tsp vanilla extract (or more)
• 1 tiny pinch salt

Procedure

Whisk together sugar, flour, and cocoa powder.

Heat milk, butter, and vanilla in medium saucepan until butter melts. Whisk dry ingredients into milk mixture, a little at a time. Increase heat and allow mixture to come to a simmer. Stir constantly for 5 minutes to allow to thicken. Whisk in pinch of salt.