Step 1

Line a loaf pan (9-by-5-inch works best) with plastic wrap, letting the edges hang over and allowing enough extra plastic to wrap the semifreddo.

Step 2

In a large bowl, combine the instant coffee, coffee extract, vanilla and 1 pint of the heavy cream. Use an electric mixer to whip until medium to firm peaks form. Use a spatula to gently fold in the condensed milk. Transfer half of the mixture to the prepared loaf pan and freeze until just beginning to set, about 20 minutes.

Step 3

Microwave 1/2 cup of the hot fudge with the remaining 1 tablespoon heavy cream in a microwave-safe bowl for 20 to 25 seconds, just to loosen it slightly. Spoon it lengthwise down the center of the pan, from end to end.

Step 4

Transfer the remaining cream mixture to the loaf pan on top of the fudge. Use a butter knife to make swirls going through the mixture. (This will move the fudge throughout the mixture.) Wrap with plastic wrap and place in the freezer for 6 hours.

Step 5

Before serving, let stand at room temperature for 5 minutes.

Step 6

Meanwhile heat the remaining 1/4 cup fudge. Unwrap the plastic, invert onto a serving plate and remove the plastic entirely. Drizzle with the hot fudge and sprinkle with the chopped espresso beans. Slice and serve immediately.