For cupcakes. Follow the directions on the back of the box substituting the orange juice for the water. When all is mixed add the marmalade and mix until just incorporated into the batter. Scoop batter into 24 cupcake papers in cupcake pan. Bake as directed on back of the box.
To make the frosting: In a large bowl using a handheld or stand mixer fitted with a whisk or paddle attachment, beat the cream cheese and butter together on medium speed until smooth, about 2 minutes. Add the confectioners’ sugar and 2 Tablespoons of milk. Beat for 2 minutes. Add the vanilla and 1 more Tablespoon milk if needed to thin out. Beat on high for 2 full minutes.
Frost fully cooled cupcakes decorate as you wish!