As seen on: Giada's Holiday Handbook, Season 2, Episode 4. Christmas Sing-A-Long.
Place the chocolate chips in a medium glass heat safe bowl. Place the bowl over a sauce pan with 1 inch of water in the bottom and heat over medium heat. Stir constantly with a rubber spatula, until the chocolate is completely melted and smooth. Stir in the oil and remove from the heat.
Line a straight sided baking sheet with a piece of parchment paper. Dip each chip half way into the chocolate coating allowing the excess to drip off back into the bowl. Place the coated chip on the parchment lined tray and continue with the remaining chips. Garnish with the sprinkles or salt of your choice. Refrigerate the chips until the chocolate is set. Store in the refrigerator for up to 3 days.