Homemade Chocolate Syrup Ingredients 3/4 cup brown sugar 3/4 cup granulated sugar 1 cup cocoa powder 1 cup cold water dash of salt 1 teaspoon vanilla extract Instructions Combine sugars and cocoa in a medium saucepan, give a good stir with a whisk to combine and make sure all lumps are broken up. Add in salt and water, stir to combine. Cook over medium heat for about 15 minutes until syrup starts to thicken. You'll also notice a change of color to a darker, richer color you're used to chocolate syrup having. Remove from heat and stir in vanilla extract. Let cool in pan, then transfer to jar for storage. Keep in refrigerator. When using, if you want a thinner syrup, just microwave for about 30-45 seconds to make pourable.