Step 1

Preheat the oven to 350ºF. Spray a 9×13-inch baking dish with nonstick cooking spray.

Step 2

In a large bowl, beat the butter and sugar together until crumbly. Beat in the egg. In another bowl, combine the flour, baking powder and salt. Beat in 1/3 of the flour mixture, followed by 1/2 of the milk. Beat in half of the remaining flour, the remaining milk, then the remaining flour. Add the orange zest. Fold in the chopped cranberries.

Step 3

Pour the batter into the prepared baking dish. Bake for 25-28 minutes, or until a tester inserted in the center comes out clean.

Step 4

To make the butter sauce, combine the butter, sugar and cream in a saucepan. Place over medium heat and bring to a boil, stirring constantly. Once it comes to a boil, reduce the heat to low and continue to cook until thick, 10-15 minutes, stirring very regularly.

Step 5

Serve the warm sauce poured over each slice of cake. The sauce will get thicker as it cools, and may crystallize. Re-warm the sauce as needed for serving.